KR20150047574A - Configuration and detection method and device for enhanced downlink control channel, evolved node b and terminal - Google Patents

Abstract

The present invention discloses an improved downlink control channel setting method, which comprises setting K ePDCCH detection clusters for a UE, using each ePDCCH detection cluster of K ePDCCH detection clusters or an ePDCCH detection cluster of different transmission modes Independently setting an antenna port index of a demodulation reference signal (DMRS) at the time of detection; And / or independently setting a DMRS scrambling sequence index when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes in K ePDCCH detection clusters; And / or the correspondence between the DMRS scrambling sequence and the DMRS scrambling sequence of the physical downlink shared channel (PDSCH) when proceeding with detection using the ePDCCH detection clusters of different ePDCCH detection clusters or different transmission modes of the K ePDCCH detection clusters, . The invention also discloses an improved downlink control channel detection method and apparatus, an improved downlink control channel setting device, a terminal, and a base station. The present invention allows the ePDCCH to have better stability and configuration flexibility.

Description

TECHNICAL FIELD [0001] The present invention relates to an improved downlink control channel setting, a detection method and apparatus, a base station, and a terminal.

The present invention relates to an improved downlink control channel setting and detection technique, and more particularly to an improved downlink control channel setting, a detection method and apparatus, a base station, and a terminal.

In Long Term Evolution (LTE) Release 8/9 (R8 / 9), a common reference signal (CRS) was designed for measurement of channel quality and demodulation of received data symbols. The user equipment (UE) can perform cell reselection of the UE and handover to the target cell by performing channel measurement through the CRS, and when the interference level is high by performing channel quality measurement in the connected state of the UE The physical layer can block the connection through the upper layer related radio link connection failure signaling. In LTE R10, two reference signals, a channel state information-reference signal (CSI-RS) and a demodulation reference signal (CSI-RS) are used to improve the average spectrum utilization rate of a cell, And a demodulation reference signal (DMRS), respectively. The CSI-RS is used for channel measurement. The CSI-RS includes a precoding matrix indicator (PMI) to be fed back to the base station (eNB), a channel quality indicator (CQI, Channel Quality Indicator and Rank Indicator (RI) can be calculated. DMRS is for demodulation on the downlink shared channel, DMRS demodulation can reduce interference between different receiving and different cells using the beam scheme, can reduce performance degradation due to codebook granularity, and can reduce downlink control signaling (There is no need to add the bit overhead of the PMI in the physical downlink control channel).

In LTE R8, R9 and R10, the physical downlink control channel is mainly distributed in the first one or the first two or first three orthogonal frequency division multiplexing (OFDM) symbols of one subframe, and the specific distribution is different Table 1 shows the relationship between the number of subframes and the number of ports of the CRS.

[Table 1]

Each receiving side must perform blind detection on the first three symbols and the starting position of the blind detection and the number of elements of the control channel are related to different control information than the wireless network temporary identifier assigned to the receiving side. The control information may be classified into the shared control information and the specific control information. The shared control information is typically located in the joint search space of the physical downlink control channel and the specific control information is located in the joint search space and the specific search space. . The receiving side determines whether there is a joint system message, downlink scheduling or uplink scheduling information in the current subframe after blind detection. Since there is no Hybrid Automatic Repeat Request (HARQ) feedback for the downlink control information, it is necessary to ensure that the code error rate of detection is as low as possible.

In the LTE R10 heterogeneous network, there is a relatively strong interference between different base station types, so that interference between a macro base station (pico base station) and a home base station (eNodeB) to a macro base station (Macro eNodeB) It is proposed to solve the mutual interference problem between different types of base stations by using the resource muting method in consideration of the problem, and a specific resource muting method may be applied to a subframe-based muting method such as the ABS method and a resource such as a CRS muting method Element-based muting method.

This method not only increases resource waste but also causes a large restriction on the scheduling. In particular, considering the ABS setting of the Macro eNodeB, if the Pico distribution is relatively large, the ABS set by the eNodeB is relatively large, which has a relatively large influence on the Macro eNodeB, and the resource waste is increased and the scheduling delay is increased. For the control channel, the ABS can reduce interference of different control channel data resources, but can not solve the interference problem of CRS resources and data resources. In the case of the CRS muting method, interference between data resources can not be solved. Backward compatibility may result in increased access delays and more standardization efforts.

In the LTE R11 step, there is a possibility that more users are to be transmitted in a multicast broadcast single frequency network (MBSFN) subframe. In this case, two OFDM symbols are set in the MBSFN (PDCCH), and a new resource capable of transmitting control information on a Physical Downlink Shared Channel (PDSCH) resource (hereinafter referred to as " ePDCCH ") in order to ensure backward compatibility of R8 / R9 / ). In the R11 step, the COMP technology is introduced. This technology can solve the interference problem between the different types of cells through the space division scheme, and can reduce the resource overhead, thereby preventing resource waste due to muting, Reduce restrictions. However, according to the current time domain PDCCH scheme, the above problem can not be solved by the space division method. In consideration of backward compatibility for R8 and R9, a control channel scheme such as a time domain PDCCH must be reserved. It is necessary to introduce a new control channel-enhanced Physical Downlink Control Channel (ePDCCH) to resolve the interference between the control channels using the space division technique. ePDCCH can improve the capacity of the system PDCCH by realizing a relatively good spatial partitioning effect and reducing interference between physical downlink control signaling between different nodes.

Another problem to be discussed in the step R11 is the lack of physical hybrid ARQ indicator channel (PHICH) resources. In R11, support for more uplink users should be considered. In particular, in case of Scenario 4, the number of supportable uplink users is significantly increased, and the capacity of the PHICH is relatively limited. In addition, in the R11 discussion, different terminals support the same uplink time frequency resource / cyclic shift assignment / CS hopping assignment / different reference signal sequence, and the existing PHICH detection resource allocation is no longer applicable, Therefore, it is necessary to further research on PHICH enhancement technology, and all of these enhanced PHICHs are called Enhanced Physical Hybrid ARQ Indicator Channel (ePHICH).

Another debate issue at the current R11 discussion stage is whether the joint search space control signaling needs to be improved. This task is mainly concerned with whether the capacity of the current R10 joint search space is limited and interference between different nodes, in particular Macro (macro cell) interference to Pico (pico cell), if capacity is limited or interference problem Is serious, there is a need to introduce improved joint search space. PDSCH area is prevented from being interfered with the time frequency resource location. Therefore, the enhanced common search space based on the PDSCH area is a current hot issue and the enhanced common search space based on the PDSCH area is enhanced by the enhanced common search space (eCSS) .

The following conclusions were initially formed through discussions of the latest 3GPP 70th session.

One ePDCCH detection cluster may be composed of N physical resource block (PRB) pairs,

The value taken by N may be N = 1 (for localized ePDCCH), 2, 4, 8, 16 (for distributed ePDCCH)

In the case of the distributed ePDCCH, transmission is performed using N PRB pairs in one ePDCCH detection cluster,

In the case of a centralized ePDCCH, transmission is performed in one ePDCCH detection cluster, but in the case of a centralized ePDCCH, the support of transmission on at least two PRB pairs must be further discussed.

The K? 1 ePDCCH clusters are set by UE-specific higher layer signaling.

The maximum value of K is 2, 3, 4 or 6,

You can set different N values for the K clusters,

The total number of blind detection for each cluster in the K clusters is independent,

The total number of blind detection corresponding to one UE should be allocated to K clusters,

Each ePDCCH detection cluster shall be set to a centralized ePDCCH or to a distributed ePDCCH,

The PRB pairs of different logical ePDCCH detection clusters are either completely overlapping or partially overlapping or not overlapping.

The main object of the present invention is to provide configuration information of an ePDCCH detection cluster of R11 by providing an improved downlink control channel setting, a detection method and apparatus, a base station, and a terminal, thereby making it possible to flexibly set an ePDCCH detection parameter . The ePDCCH detection cluster includes one or a plurality of frequency domain resource units for detecting an ePDCCH allocated in one subframe for detecting an ePDCCH.

In order to achieve the above object, the technical solution according to the present invention is realized as follows.

In an improved downlink control channel setting method, K ePDCCH detection clusters are set for a terminal,

Independently setting an antenna port index of the demodulation reference signal (DMRS) when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used for detection; And / or

Independently setting a DMRS scrambling sequence or a scrambling sequence index when performing detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters; And / or

The correspondence relationship between the DMRS scrambling sequence and the DMRS scrambling sequence of the physical downlink shared channel (PDSCH) when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is independently set ; And / or

Independently setting a common reference signal (CRS) rate matching resource when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters; And / or

Independently configuring resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes; And / or

Independently setting a start symbol position for ePDCCH detection when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes; And / or

Independently configuring a CSI measurement process configuration when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to perform detection; And / or

Independently configuring an NZP (nonzero power) CSI-RS configuration when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or

Independently setting a downlink control information format (DCI Format) or a DCI Format set to be detected when detection is performed using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes; And / or

Independently configuring an ePDCCH detection subframe cluster when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or

Setting an aggregation level and / or a search space start position and / or a search space position when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes independently ; And / or

Independently predefining or independently setting a default value or a default behavior when the signaling for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is not notified or not obtained ; And / or

For the ePDCCH, two or more subframe detection clusters are set up and different ePDCCH detection cluster configurations are used for different subframe detection clusters and / or ePDCCH detection or PDCCH detection is used, A combination level to be detected in the detection cluster, and a resource position to be detected in the detection cluster are included in the detection cluster.

Preferably, each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is at least one of the DMRS antenna ports 107, 108, 109, and 110 when the detection proceeds.

Preferably, when two or more DMRS antenna ports are set for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes when performing detection, an enhanced control channel element one of the two or more DMRS antenna ports is determined as the detection port, according to the Cellular Radio Network Temporary Identifier (e-CCE) and / or the Cellular Radio Network Temporary Identifier (C-RNTI) and / or the predefined rule.

Preferably, the correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when performing detection using the ePDCCH detection clusters of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is such that the scrambling sequence identifier for the PDSCH DMRS is And sets the correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when performing detection using the K ePDCCH detection clusters independently.

Preferably, the CRS rate matching resource when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the number of ports of the CRS, the frequency domain location of the CRS, And at least one of the cell identifiers.

Preferably, the resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters include CRS rate matching resources, ZP (zero power) CSI A rate matching resource of the RS, an ePDCCH start symbol, a special subframe configuration, and a cyclic prefix (CP) length configuration.

Preferably, the ePDCCH start symbol ID set at the time of detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes ePDCCH start symbol ID sets 0, 1, 2, 3, 4 or a value of the ePDCCH start symbol ID obtained through detection for a physical control format indication channel (PCFICH).

Preferably, independently configuring the CSI measurement process configuration when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is performed by setting a CSI process for the UE , Large-scale information required for detection performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using the related information of the established CSI measurement process do. Here, the large-capacity information includes a delay spread corresponding to the CSI measurement process, each path delay corresponding to the CSI measurement process, a Doppler frequency shift corresponding to the CSI measurement process, and a CSI measurement process Doppler broadening, and an average received power corresponding to the CSI measurement process.

The CSI measurement process includes one of the measurement resources of the CSI measurement process, the CSI measurement process and the measurement resource of the CSI measurement subframe cluster configuration, and the NZP CSI-RS measurement resource.

Preferably, independently configuring the NZP CSI-RS configuration when proceeding with detection using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters may include, for the terminal, The large capacity information required for detection performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is set to a value corresponding to one NZP CSI- . Here, the large-capacity information includes delay spread corresponding to NZP CSI-RS, each path delay corresponding to NZP CSI-RS, Doppler frequency shift corresponding to NZP CSI-RS, Doppler extension corresponding to NZP CSI- And one of the average received power corresponding to the NZP CSI-RS.

Preferably, independently setting the DCI Format or DCI Format set to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used for detection,

For each ePDCCH detection cluster or ePDCCH detection cluster of each transmission mode of the K ePDCCH detection clusters, a DCI Format or a DCI Format set to be detected by the UE in each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster is independently .

Preferably, the step of independently setting the ePDCCH detection subframe cluster when proceeding with detection using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters,

Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection subframe cluster independently set for the ePDCCH detection clusters of each transmission mode independently, and the ePDCCH detection subframe cluster sets the ePDCCH detection subframe cluster To detect an ePDCCH in a frame and to detect a PDCCH in which subframe, or to instruct the terminal to use a different ePDCCH detection cluster configuration in different subframe clusters.

Preferably, the step of independently setting the ePDCCH detection subframe cluster when proceeding with detection using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters,

Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode independently explains an ePDCCH detection subframe cluster, wherein the ePDCCH detection subframe cluster allocates the ePDCCH detection clusters To detect the search space and to detect the PDCCH dedicated search space in some other subframes.

Preferably, independently for each ePDCCH detection cluster of the K ePDCCH detection clusters or each transmission mode ePDCCH detection cluster, dynamic resource location indication signaling of the PUCCH upon performing HARQ (Hybrid Automatic Repeat Request) feedback is set independently And the dynamic resource location indication signaling instructs the terminal to use PUCCH dynamic resource location indication signaling set independently for downlink data HARQ feedback indicated in different ePDCCHs.

Preferably, the ePDCCH detection cluster of the transmission mode includes an intensive transmission mode ePDCCH detection cluster and a distributed transmission mode ePDCCH detection cluster.

Preferably, in independently setting the downlink control information format (DCI Format) to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or each transmission mode ePDCCH detection cluster is used for detection,

Sets a different DCI Format set for the specified K value,

Sets a different DCI Format set for the specified K ePDCCH detection clusters and the ePDCCH detection clusters for the specified distributed transmission mode and the centralized transmission mode,

And setting a detected DCI Format set using each ePDCCH detection cluster.

In an improved downlink control channel detection method,

Detecting an enhanced downlink control channel by the terminal;

Obtaining an antenna port index of a demodulation reference signal (DMRS) when each ePDCCH detection cluster of k ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode is used for detection; And / or

Obtaining a DMRS scrambling sequence index when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes; And / or

Obtaining a correspondence between a DMRS scrambling sequence and a DMRS scrambling sequence of the PDSCH when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes; And / or

Obtaining a common reference signal (CRS) rate matching resource when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or

Obtaining resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes; And / or

Obtaining an ePDCCH start symbol ID set when each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode is used for detection; And / or

Obtaining a CSI measurement process configuration when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or

Obtaining an NZP CSI-RS configuration when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or

Obtaining a downlink control information format (DCI Format) or a DCI Format set to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used for detection; And / or

Obtaining an ePDCCH detection subframe cluster when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or

Obtaining an association level and / or a search space start position when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes are used for detection; And / or

Independently predefining or setting, if the information is not obtained, the terminal acquiring a default value or a default behavior of each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes, if the information is not obtained; And / or

ePDCCH detection cluster configuration using different ePDCCH detection cluster configurations and / or using ePDCCH detection or PDCCH detection for different subframe occupancy clusters in acquiring two or more subframe dominated clusters set for ePDCCH, Includes at least one of a number of detection clusters, a combination level to be detected in the detection cluster, and a resource position to be detected in the detection cluster.

Preferably, each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is at least one of the DMRS antenna ports 107, 108, 109, and 110 when performing detection,

The correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when the detection is performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode corresponds to a case where a scrambling sequence identifier for the PDSCH DMRS is set Independently sets a correspondence relationship between a DMRS scrambling sequence and a PDSCH DMRS sequence when detection is performed using each ePDCCH detection cluster of the K ePDCCH detection clusters,

The CRS rate matching resource when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the number of ports of CRS, the frequency domain location of CRS, and the number of cell identifiers of CRS At least one is included,

Resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode include CRS rate matching resources, rate matching resources of ZP CSI-RS, an ePDCCH start symbol, a special subframe configuration, and a cyclic prefix (CP) length configuration,

The ePDCCH start symbol ID set at the time of detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes ePDCCH start symbol ID sets 0, 1, 2, 3, 4 or PCFICH At least one of one or more of the values of the ePDCCH start symbol ID obtained through detection for the ePDCCH start symbol ID,

Independently setting the CSI measurement process configuration when performing detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the steps of, when a CSI measurement process is set for the terminal, Wherein the large capacity information required for detection performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using related information of a set CSI measurement process, The delay spread corresponding to the CSI measurement process, each path delay corresponding to the CSI measurement process, the Doppler frequency shift corresponding to the CSI measurement process, the Doppler extension corresponding to the CSI measurement process, and the average received power corresponding to the CSI measurement process One is included, The CSI measurement process includes one of the measurement resources of the CSI measurement process, the CSI measurement process and the measurement resource of the CSI measurement subframe cluster configuration, and the NZP CSI-RS measurement resource,

Independently configuring the NZP CSI-RS configuration when performing detection using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, , The large capacity information required for detection performed using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using the related information of one NZP CSI-RS in the corresponding measurement set ,

Independently setting a DCI Format or a DCI Format set to be detected when each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters is to be detected, Independently for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of each ePDCCH detection cluster or ePDCCH detection cluster in each transmission mode, a DCI Format or DCI Format set to be detected by the UE,

Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or each of the ePDCCH detection clusters of each transmission mode independently configures an ePDCCH detection subframe cluster when performing detection using the ePDCCH detection clusters of the K ePDCCH detection clusters, Clusters or ePDCCH Detection Clusters for each transmission mode independently, and the ePDCCH detection subframe cluster detects the ePDCCH in any subframe and detects the PDCCH in any subframe Or instructing the terminal to use different ePDCCH detection cluster configurations in different subframe clusters or by using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters Independently setting an ePDCCH detection subframe cluster when proceeding with detection includes independently describing an ePDCCH detection subframe cluster for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, Wherein the ePDCCH detection subframe cluster includes instructing the terminal to detect an ePDCCH dedicated search space in a certain subframe and detect a PDCCH dedicated search space in another subframe,

Independently setting dynamic resource location indication signaling of a PUCCH at the time of performing HARQ feedback for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, , Instructs the terminal to use PUCCH dynamic resource location indication signaling set independently for downlink data HARQ feedback indicated in different ePDCCHs.

Advantageously, when two or more DMRS antenna ports are used when performing detection using one ePDCCH detection cluster or one ePDCCH detection cluster of one transmission mode among the obtained K ePDCCH detection clusters, one of the two or more DMRS antenna ports is determined as a detection port in accordance with the eCCE and / or the cell radio network temporary identifier (C-RNTI) and / or the predefined rule.

Preferably, the ePDCCH detection cluster of the transmission mode includes an intensive transmission mode ePDCCH detection cluster and a distributed transmission mode ePDCCH detection cluster.

Preferably, in obtaining the downlink control information format (DCI Format) to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used for detection,

A terminal detects a K value using a different DCI Format set,

The UE detects the identified K ePDCCH detection clusters and the ePDCCH detection clusters in the specified distributed transmission mode and the centralized transmission mode using a different DCI Format set,

And performing detection on the DCI Format set using the respective ePDCCH detection clusters obtained by the UE.

An improved downlink control channel setting apparatus, comprising: a first setting unit and a second setting unit,

The first setting unit is configured to set up K ePDCCH detection clusters for the terminal,

The second setting unit,

Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set the antenna port index of the DMRS when proceeding detection, and /

Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set a DMRS scrambling sequence or a scrambling sequence index when proceeding with detection, and /

Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set the correspondence between the DMRS scrambling sequence and the DMRS scrambling sequence of the PDSCH when proceeding with detection and / ,

And to independently set CRS rate matching resources when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

And to independently set available resource elements for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes, and /

Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set a start symbol position for ePDCCH detection when proceeding with detection, and /

And to independently configure the CSI measurement process configuration when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set the NZP CSI-RS configuration when proceeding with detection, and /

(DCI Format) or DCI Format set to be detected when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes , And /

Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to set the ePDCCH detection subframe cluster independently when proceeding with detection, and /

Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set an association level and / or a search space start position and / or a search space position when proceeding detection, And /

Or to set independently or independently a default value or a default behavior when the signaling for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is not notified or not obtained And, and / or,

the ePDCCH detection cluster configuration is configured to set two or more subframe detection clusters for ePDCCH and use different ePDCCH detection cluster configurations for different subframe detection clusters and / or use ePDCCH detection or PDCCH detection, A number of clusters, a combination level to be detected in the detection cluster, and a resource position to be detected in the detection cluster.

Preferably, each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is at least one of the DMRS antenna ports 107, 108, 109, and 110 when performing detection,

The correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when the detection is performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode corresponds to a case where a scrambling sequence identifier for the PDSCH DMRS is set Sets the correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when the detection is performed using the K ePDCCH detection clusters,

The CRS rate matching resource when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the number of ports of CRS, the frequency domain location of CRS, and the number of cell identifiers of CRS At least one is included,

Resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode include CRS rate matching resources, rate matching resources of ZP CSI-RS, an ePDCCH start symbol, a special subframe configuration, and a cyclic prefix (CP) length configuration,

The ePDCCH start symbol ID set at the time of detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes ePDCCH start symbol ID sets 0, 1, 2, 3, 4 or PCFICH At least one of one or more of the values of the ePDCCH start symbol ID obtained through detection for the ePDCCH start symbol ID,

Independently configuring the CSI measurement process configuration when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used to perform detection, when a CSI process is set for the UE, Wherein the large capacity information required for detection performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using related information of the set CSI measurement process, At least one of the delay spread corresponding to the process, each path delay corresponding to the CSI measurement process, the Doppler frequency shift corresponding to the CSI measurement process, the Doppler extension corresponding to the CSI measurement process, and the average received power corresponding to the CSI measurement process And the CSI measurement process Includes one of the measurement resources of the CSI measurement process, the CSI measurement process and the measurement resource of the CSI measurement subframe cluster configuration, and the NZP CSI-RS measurement resource,

Independently setting the NZP CSI-RS configuration when performing detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes: when a measurement set is set for the UE , The large capacity information required for detection conducted using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using the related information of one NZP CSI-RS in the corresponding measurement set And,

Independently setting the DCI Format or DCI Format set to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used for detection, Independently for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of each ePDCCH detection cluster or ePDCCH detection cluster in each transmission mode, a DCI Format or DCI Format set to be detected by the UE,

Independently configuring an ePDCCH detection subframe cluster when performing detection using each ePDCCH detection cluster or each ePDCCH detection cluster of each of the K ePDCCH detection clusters, Clusters or ePDCCH Detection Clusters for each transmission mode independently, and the ePDCCH detection subframe cluster detects the ePDCCH in any subframe and detects the PDCCH in any subframe Or instructing the terminal to use a different ePDCCH detection cluster configuration in different subframe clusters, or each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of each transmission mode Independently setting the ePDCCH detection subframe cluster for each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode, Wherein the ePDCCH detection subframe cluster includes instructing the terminal to detect an ePDCCH dedicated search space in a certain subframe and detect a PDCCH dedicated search space in another subframe,

Describing independently for each ePDCCH detection cluster or ePDCCH detection cluster in each of the K ePDCCH detection clusters dynamic resource location indication signaling of the PUCCH at the time of performing HARQ feedback, the dynamic resource location indication signaling , Instructs the terminal to use PUCCH dynamic resource location indication signaling set independently for downlink data HARQ feedback indicated in different ePDCCHs.

Preferably, the apparatus further comprises:

When an ePDCCH detection cluster of K ePDCCH detection clusters or an ePDCCH detection cluster of one transmission mode is used and the DMRS antenna port is set to two or more when the detection is proceeded, an enhanced control channel element (eCCE) And a determination unit configured to determine one of the two or more DMRS antenna ports as a detection port in accordance with the cell radio network temporary identifier (C-RNTI) and / or the predefined rule do.

Preferably, the ePDCCH detection cluster of the transmission mode includes an intensive transmission mode ePDCCH detection cluster and a distributed transmission mode ePDCCH detection cluster.

Preferably, the second setting unit further comprises:

Sets a different DCI Format set for the specified K value,

Sets a different DCI Format set for the specified K ePDCCH detection clusters and the ePDCCH detection clusters for the specified distributed transmission mode and the centralized transmission mode,

And to set the detected DCI Format set using each ePDCCH detection cluster.

For the base station, the above-described improved downlink control channel configuration apparatus is included.

An improved downlink control channel detection apparatus, comprising: a detection unit and an acquisition unit,

The detection unit is configured to detect an enhanced downlink control channel,

The acquisition unit

To obtain an antenna port index of a demodulation reference signal (DMRS) when proceeding with detection using each ePDCCH detection cluster of k ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes, and /

And to obtain a DMRS scrambling sequence index when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

To obtain a correspondence between a DMRS scrambling sequence and a DMRS scrambling sequence of the PDSCH when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

And to obtain common reference signal (CRS) rate matching resources when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes is used to obtain available resource elements for ePDCCH transmission when proceeding with detection, and /

Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes is used to obtain an ePDCCH start symbol ID set when proceeding with detection, and /

And to obtain a CSI measurement process configuration when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

And to obtain an NZP CSI-RS configuration when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

(DCI Format) or DCI Format set to be detected when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /or,

Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to obtain an ePDCCH detection subframe cluster when proceeding with detection, and /

Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes is used to obtain a combining level and / or a search space starting position when proceeding with detection, and /

And to acquire a default value or a default behavior of each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes in the K ePDCCH detection clusters if the information is not obtained, And /

ePDCCH detection < / RTI > detection or PDCCH detection for different subframe dominated clusters in obtaining two or more subframe dominated clusters set for ePDCCH, and / or using ePDCCH detection or PDCCH detection, The cluster configuration includes at least one of a number of detection clusters, a combination level to be detected in the detection cluster, and a resource position to be detected in the detection cluster.

Preferably, each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is at least one of the DMRS antenna ports 107, 108, 109, and 110 when performing detection,

The correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when the detection is performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode corresponds to a case where a scrambling sequence identifier for the PDSCH DMRS is set Independently sets a correspondence relationship between a DMRS scrambling sequence and a PDSCH DMRS sequence when detection is performed using each ePDCCH detection cluster of the K ePDCCH detection clusters,

The CRS rate matching resource when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the number of ports of CRS, the frequency domain location of CRS, and the number of cell identifiers of CRS At least one is included,

Resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode include CRS rate matching resources, rate matching resources of ZP CSI-RS, an ePDCCH start symbol, a special subframe configuration, and a cyclic prefix (CP) length configuration,

The ePDCCH start symbol ID set at the time of detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes ePDCCH start symbol ID sets 0, 1, 2, 3, 4 or PCFICH At least one of one or more of the values of the ePDCCH start symbol ID obtained through detection for the ePDCCH start symbol ID,

Independently setting the CSI measurement process configuration when performing detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is performed when a CSI measurement process is set for the terminal, Wherein the large capacity information required for detection performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using related information of a set CSI measurement process, The delay spread corresponding to the CSI measurement process, each path delay corresponding to the CSI measurement process, the Doppler frequency shift corresponding to the CSI measurement process, the Doppler extension corresponding to the CSI measurement process, and the average received power corresponding to the CSI measurement process One, and the CSI The measurement process includes one of the measurement resources of the CSI measurement process, the CSI measurement process and the measurement resource of the CSI measurement subframe cluster configuration, and the NZP CSI-RS measurement resource,

Independently configuring an NZP CSI-RS configuration when performing detection using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, if the measurement set is set for the terminal, The large capacity information required for detection performed using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using the related information of one NZP CSI-RS in the corresponding measurement set,

Independently setting the DCI Format or DCI Format set to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used for detection, Independently for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of each ePDCCH detection cluster or ePDCCH detection cluster in each transmission mode, a DCI Format or DCI Format set to be detected by the UE,

Independently setting ePDCCH detection subframe clusters when performing detection using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, Clusters or ePDCCH detection clusters in each transmission mode, the ePDCCH detection subframe cluster independently sets the ePDCCH detection subframe cluster to detect the ePDCCH in which subframe and detect the PDCCH in which subframe , Or instructs the terminal to use different ePDCCH detection cluster configurations in different subframe clusters, or using each ePDCCH detection cluster or ePDCCH detection clusters of each transmission mode in the K ePDCCH detection clusters Independently setting the ePDCCH detection subframe cluster when going out is independently described for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode, Wherein the ePDCCH detection subframe cluster includes instructing the terminal to detect an ePDCCH dedicated search space in a certain subframe and detect a PDCCH dedicated search space in another subframe,

Independently setting dynamic resource location indication signaling of a PUCCH at the time of performing HARQ feedback for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, , Instructs the terminal to use PUCCH dynamic resource location indication signaling set independently for downlink data HARQ feedback indicated in different ePDCCHs.

Preferably, the apparatus further comprises:

When two or more DMRS antenna ports are used when performing detection using one ePDCCH detection cluster or one ePDCCH detection cluster of one transmission mode among the K ePDCCH detection clusters acquired by the acquisition unit, Is configured to establish one of the two or more DMRS antenna ports as a detection port in accordance with an element (eCCE) and / or a cell radio network temporary identifier (C-RNTI) and / or a predefined rule The determination unit is further included.

Preferably, the ePDCCH detection cluster of the transmission mode includes an intensive transmission mode ePDCCH detection cluster and a distributed transmission mode ePDCCH detection cluster.

Preferably, the detection unit further comprises:

Using a different DCI Format set for a specified K value,

Detecting the identified K ePDCCH detection clusters using a different DCI Format set for the ePDCCH detection clusters in the specified distributed transmission mode and the intensive transmission mode,

And to perform detection on the DCI Format set using each acquired ePDCCH detection cluster.

In the terminal, the aforementioned improved downlink control channel detection apparatus is included.

In a base station, another DMRS antenna port sharing a time frequency resource at the time of detection for an ePDCCH resource is allocated to an ePDCCH or a PDSCH of another terminal by using terminal-dedicated higher layer signaling and / or downlink control information (DCI) It is configured to notify the terminal whether or not it should be assumed whether or not it is used for transmission.

Preferably, the base station further comprises: means for setting up the K ePDCCH detection clusters so that, when detecting for the ePDCCH resource, the other one of the DMRS antenna ports sharing the time frequency resource in the K ePDCCH detection clusters is the ePDCCH Or < / RTI > PDSCH transmission.

Preferably, the base station sets up the K ePDCCH detection clusters so that, when detecting the ePDCCH resource, the base station allocates time-frequency resources in a part or all of clusters of K clusters to another one of the DMRS antenna ports, ePDCCH < / RTI > or PDSCH transmission.

Preferably, the base station also sets X subframe clusters so that, when detecting for the ePDCCH resource, the base station sets the other one of the DMRS antenna ports sharing the time frequency resource in some or all of the clusters of X subframes It is assumed that it is assumed to be used for ePDCCH or PDSCH transmission of one terminal.

Preferably, the DMRS antenna ports include 107, 108, 109, and 110, ports 107 and 108 share a time frequency resource, and ports 109 and 110 share a time frequency resource.

In the UE, another DMRS antenna port sharing a time-frequency resource at the time of detection for an ePDCCH resource is received from the ePDCCH of another UE through the reception of the UE-specific upper layer signaling and / or the downlink control information (DCI) Or whether it should be used for PDSCH transmission.

Preferably, the UE also acquires K sets of ePDCCH detection clusters through reception for UE-specific higher layer signaling, and also, when detecting for an ePDCCH resource, communicates time frequency resources in K ePDCCH detection clusters And the other one of the DMRS antenna ports is used for ePDCCH or PDSCH transmission channel estimation of the other terminal, and transmits the higher layer signaling to the DMRS according to the received higher layer signaling. To perform channel estimation.

Advantageously, the terminal also acquires K set ePDCCH detection clusters through reception for terminal-specific higher layer signaling, and also, upon detection for the ePDCCH resource, It is configured to assume that the other one of the DMRS antenna ports sharing the resources is assumed to be used for the ePDCCH or PDSCH transmission of another UE.

Preferably, the UE also acquires X set subframe clusters through reception for UE-specific higher layer signaling, and when detecting for an ePDCCH resource, instructs the UE to allocate some or all of the X subframe clusters Time base station is set to assume that the other one of the DMRS antenna ports sharing the time frequency resource is used for ePDCCH or PDSCH transmission of another UE.

Preferably, the DMRS antenna port is configured to demodulate the ePDCCH and includes 107, 108, 109, and 110, ports 107 and 108 share a time frequency resource, and ports 109 and 110 share a time frequency resource.

The UE is configured to always assume that another DMRS antenna port sharing a time frequency resource is not used for ePDCCH or PDSCH transmission of another UE at the time of detection of an ePDCCH resource.

Preferably, the DMRS antenna port is configured to demodulate the ePDCCH and includes 107, 108, 109, and 110, ports 107 and 108 share a time frequency resource, and ports 109 and 110 share a time frequency resource.

The UE determines whether or not another DMRS antenna port sharing a time frequency resource is used for ePDCCH or PDSCH transmission of another UE according to the ePDCCH transmission mode in detecting the ePDCCH resource do.

Preferably, when the UE is set to a centralized ePDCCH, the UE always assumes that the other DMRS antenna port sharing the time frequency resource is not used for ePDCCH or PDSCH transmission of one UE at the time of detection of the ePDCCH resource .

Preferably, when the UE is set to a distributed ePDCCH, the UE determines whether another DMRS antenna port sharing a time frequency resource is used for ePDCCH or PDSCH transmission of another UE at the time of detection of an ePDCCH resource It can not be assumed.

Preferably, the DMRS antenna port is configured to demodulate the ePDCCH and includes 107, 108, 109, and 110, ports 107 and 108 share a time frequency resource, and ports 109 and 110 share a time frequency resource.

In the present invention, K ePDCCH detection clusters are set for the UE, and an ePDCCH detection cluster of the ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes is used for the detection of the demodulation reference signal (DMRS) It is also possible to set the port index independently or set the DMRS scrambling sequence index independently when proceeding detection using each ePDCCH detection cluster of ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes or K ePDCCH detection clusters It is possible to independently set the correspondence between the DMRS scrambling sequence and the DMRS scrambling sequence of the physical downlink shared channel (PDSCH) when each ePDCCH detection cluster of the cluster or the ePDCCH detection cluster of the different transmission mode is used for detection, The ePDCCH detection cluster ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes can be used to independently set common reference signal (CRS) rate matching resources when proceeding with detection, or each ePDCCH detection cluster of K ePDCCH detection clusters or different transmission modes When the ePDCCH detection cluster is used to independently set the resource elements available for transmission of the ePDCCH when proceeding with the detection, or when the detection is proceeded using the ePDCCH detection clusters of the ePDCCH detection clusters or the ePDCCH detection clusters of the different transmission modes of the K ePDCCH detection clusters (CSI) measurement process configuration when setting the ePDCCH detection start symbol ID set of the ePDCCH detection cluster of the ePDCCH detection cluster or the ePDCCH detection cluster of the different transmission mode of the K ePDCCH detection clusters independently, Set up independently Or the NZP CSI-RS configuration when performing detection using the ePDCCH detection clusters of K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes independently, or each ePDCCH detection cluster of K ePDCCH detection clusters (DCI Format) to be detected when the detection is proceeded using the ePDCCH detection cluster of the ePDCCH detection cluster or the different transmission mode, or by setting each of the ePDCCH detection clusters or the different transmission modes The ePDCCH detection cluster of the ePDCCH detection cluster, or the ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection cluster of the different transmission mode, Join level and search space start Or independently set or independently set a default value or a default behavior of each ePDCCH detection cluster or ePDCCH detection cluster of different transmission modes in K ePDCCH detection clusters. On the terminal side, the ePDCCH is detected and the configuration information is obtained to realize the interpretation of the ePDCCH. The technique of the present invention allows the base station to set the ePDCCH detection parameter flexibly for the UE so as to flexibly perform dynamic switching between the plurality of TPs for the ePDCCH and to allow the base station to make the scheduling information of the ePDCCH more flexible So that the ePDCCH has more stability.

1 is a diagram illustrating an exemplary configuration of an improved downlink control channel setting apparatus according to an embodiment of the present invention.
2 is a diagram illustrating an exemplary configuration of an improved downlink control channel detection apparatus according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS For a better understanding of the objects, techniques and advantages of the present invention, reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

In order to facilitate understanding of the present invention, the present invention will be described in further detail below with reference to specific examples. The independent setting in the present patent application merely emphasizes the irrelevance between different ePDCCH sets and can not be set via signaling of the same set or can not be associated with the set signaling of a common PDSCH. I never do that. A free combination between each embodiment is possible, and in each embodiment, the independent description is not limited to any combination format.

Example 1

The base station establishes K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and the base station uses each ePDCCH detection cluster or each ePDCCH transmission mode cluster through the UE- And sets the antenna port index of the corresponding DMRS independently. The UE performs reception and detection on the ePDCCH through reception on the DMRS antenna port set independently of the K ePDCCH detection clusters set by the base station.

Sub-Example 1 of Example 1

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively.

For the ePDCCH detection cluster 0, the port number for detecting the DMRS is 7,

For the ePDCCH detection cluster 1, the port number for detecting the DMRS is 8.

Sub-Example 2 of Example 1

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively.

For the ePDCCH detection cluster 0, the port numbers for detecting the DMRS are 7 and 8,

For ePDCCH detection cluster 1, the port numbers for detecting DMRS are 9 and 10.

Sub-Example 3 of Example 1

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH.

For the distributed ePDCCH, the port number for detecting the DMRS is 7,

In the case of the centralized ePDCCH, the port number for detecting the DMRS is eight.

Sub-Example 4 of Example 1

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH.

In the case of the dispersion type ePDCCH, the port numbers for detecting the DMRS are 7 and 8,

In the case of the centralized ePDCCH, the port number for detecting the DMRS is 9, 10.

Specifically, it is determined by using the eCCE index and / or the C-RNTI and / or the PRB index as to which of the ports the terminal uses to detect the DMRS.

Example 2

The base station sets up K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE and also uses each ePDCCH detection cluster or each ePDCCH transmission mode cluster through the UE-specific upper layer signaling, The DMRS scrambling sequence is set independently. The UE performs reception and detection on the ePDCCH through reception of the DMRS scrambling sequence set independently of the K ePDCCH detection clusters set by the base station.

Sub-Example 1 of Example 2

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively.

In the case of ePDCCH detection cluster 0, the virtual cell ID corresponding to the scrambling sequence for detecting DMRS is X0 and Nscid = 0.

In the case of the ePDCCH detection cluster 1, the virtual cell ID corresponding to the scrambling sequence for detecting the DMRS is X1 and Nscid = 0.

이며,

Lt;

를 표시하고, Nscid는 이 수학식 내의

을 표시한다.Here, Xn (n = 1, 2)

And Nscid represents the value of

.

Sub-Embodiment 2 of Embodiment 2

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively.

In the case of ePDCCH detection cluster 0, the virtual cell ID corresponding to the scrambling sequence for detecting DMRS is X0 and Nscid = 0.

In the case of the ePDCCH detection cluster 1, the virtual cell ID corresponding to the scrambling sequence for detecting the DMRS is X1 and Nscid = 1.

이며,

Lt;

를 표시하고, Nscid는 이 수학식 내의

을 표시한다. Here, Xn (n = 1, 2)

And Nscid represents the value of

.

In this case, Nscid may be fixed to Nscid = 0 or Nscid = 1, or both Nscid and virtual cell ID may be independently set according to higher layer signaling.

Sub-Example 3 of Example 2

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are concentrated ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH.

In the case of the distributed ePDCCH, the virtual cell ID corresponding to the scrambling sequence for detecting the DMRS is X0 and Nscid = 0.

In the case of the centralized ePDCCH, the virtual cell ID corresponding to the scrambling sequence for detecting the DMRS is X1, and Nscid = 0.

이며,

Lt;

를 표시하고, Nscid는 이 수학식 내의

을 표시한다. Here, Xn (n = 1, 2)

And Nscid represents the value of

.

Sub-Example 4 of Example 2

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are concentrated ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH.

In the case of the distributed ePDCCH, the virtual cell ID corresponding to the scrambling sequence for detecting the DMRS is X0 and Nscid = 0.

In the case of the centralized ePDCCH, the virtual cell ID corresponding to the scrambling sequence for detecting the DMRS is X1 and Nscid = 1.

이며,

Lt;

를 표시하고, Nscid는 이 수학식 내의

을 표시한다. Here, Xn (n = 1, 2)

And Nscid represents the value of

.

In this case, Nscid may be fixed to Nscid = 0 or Nscid = 1, or both Nscid and virtual cell ID may be independently set according to higher layer signaling.

Example 3

The base station establishes K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and the base station uses each ePDCCH detection cluster or each ePDCCH transmission mode cluster through the UE- The correspondence relationship between the scrambling sequence of the corresponding DMRS and the PDSCH DMRS scrambling sequence is set independently. The UE performs reception and detection on the ePDCCH through reception of the correspondence between the scrambling sequence of the DMRS and the PDSCH DMRS scrambling sequence set independently of the K ePDCCH detection clusters set by the base station.

Sub-Example 1 of Example 3

For example, the number of set ePDCCH detection clusters, that is, the value of K, is 2, ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively, and the set PDSCH DMRS scrambling sequence is X0, Nscid = 0 and X1 and Nscid = 1.

For the ePDCCH detection cluster 0, the scrambling sequence for detecting the DMRS takes X0, Nscid = 0.

For the ePDCCH detection cluster 1, the scrambling sequence for detecting the DMRS takes X1, Nscid = 1.

For example, when a value of 1 bit is 0, X0 and Nscid = 0 are bound, and when 1 bit is 1, X1 and Nscid = 1 are bound to each other. .

이며,

Lt;

를 표시하고, Nscid는 이 수학식 내의

을 표시한다.Here, Xn (n = 1, 2)

And Nscid represents the value of

.

Sub-Example 2 of Example 3

For example, the number of set ePDCCH detection clusters, that is, the value of K, is 2, ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively, and the set PDSCH DMRS scrambling sequence is X0, Nscid = 0 and X1 and Nscid = 1.

For the ePDCCH detection cluster 0, the scrambling sequence for detecting the DMRS takes X0, Nscid = 0.

For the ePDCCH detection cluster 1, the scrambling sequence for detecting the DMRS takes X1, Nscid = 0.

For example, if a 1-bit value is 0, it is bound to X0. If a 1-bit value is 1, it is bound to X1, and Nscid The value is fixed at 0 or 1.

이며,

Lt;

를 표시하고, Nscid는 이 수학식 내의

을 표시한다.Here, Xn (n = 1, 2)

And Nscid represents the value of

.

Sub-Example 3 of Example 3

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are centralized ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, and the set PDSCH DMRS scrambling sequence Is X0, Nscid = 0, and X1, Nscid = 1.

In the case of the distributed ePDCCH, the scrambling sequence for detecting the DMRS takes X0, Nscid = 0.

In the case of the centralized ePDCCH, the scrambling sequence for detecting the DMRS takes X1, Nscid = 1.

For example, when a value of 1 bit is 0, X0 and Nscid = 0 are bound, and when 1 bit is 1, X1 and Nscid = 1 are bound to each other. .

이며,

Lt;

를 표시하고, Nscid는 이 수학식 내의

을 표시한다.Here, Xn (n = 1, 2)

And Nscid represents the value of

.

Sub-Example 4 of Example 3

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are centralized ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, and the set PDSCH DMRS scrambling sequence Is X0, Nscid = 0, and X1, Nscid = 1.

In the case of the distributed ePDCCH, the scrambling sequence for detecting the DMRS takes X0, Nscid = 0.

In the case of the centralized ePDCCH, the scrambling sequence for detecting the DMRS takes X1, Nscid = 0.

For example, when a 1-bit value is 0, it is bound to X0. If a 1-bit value is 1, it is bound to X1 and a value of Nscid Is fixed to 0 or 1.

이며,

Lt;

를 표시하고, Nscid는 이 수학식 내의

을 표시한다.Here, Xn (n = 1, 2)

And Nscid represents the value of

.

Example 4

The base station sets up K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and the CRS rate matching resource when the base station performs detection using each ePDCCH detection cluster through the UE- Respectively. The UE performs reception and detection on the ePDCCH through reception of CRS rate matching resources set independently of the K ePDCCH detection clusters set by the base station.

Sub-Example 1 of Example 4

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively.

For ePDCCH detection cluster 0, the CRS rate matching resource takes S0,

For ePDCCH detection cluster 1, the CRS rate matching resource takes S1.

Sub-Example 2 of Example 4

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2, ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively, and the set PDSCH CRS rate matching resources are S0 and S1.

For ePDCCH detection cluster 0, the CRS rate matching resource takes S0,

For ePDCCH detection cluster 1, the CRS rate matching resource takes S1.

1-bit higher layer signaling can indicate the binding relationship with the PDSCH CRS rate matching resource. For example, if a value of 1 bit is 0, it binds to S 0. If the value is 1, it binds to S 1.

Sub-Example 3 of Example 4

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH.

For a distributed ePDCCH, the CRS rate matching resource takes S0,

For a centralized ePDCCH, the CRS rate matching resource takes S1.

Sub-Example 4 of Example 4

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, and the set PDSCH CSR rate matching resource Are S0 and S1.

For a distributed ePDCCH, the CSR rate matching resource takes S0,

For a centralized ePDCCH, the CSR rate matching resource takes S1.

1-bit higher layer signaling can indicate the binding relationship with the PDSCH CRS rate matching resource. For example, if a value of 1 bit is 0, it binds to S 0. If the value is 1, it binds to S 1.

Example 5

The base station establishes K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and the base station uses the ePDCCH transmission when the detection is performed using each ePDCCH detection cluster through the UE- Set the possible resource elements independently. The UE performs reception and detection on the ePDCCH through reception of resource elements available for ePDCCH transmission set independently of the K ePDCCH detection clusters set by the base station.

Here, the resource elements available for ePDCCH transmission include at least one of CRS rate matching resource, rate matching resource of ZP CSI-RS, ePDCCH start symbol, special subframe configuration, and CP length configuration.

Sub-Example 1 of Example 5

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively.

For ePDCCH detection cluster 0, the available resource element is S0,

For ePDCCH detection cluster 1, the available resource element is S1.

Sub-Example 2 of Example 5

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2, ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively, and the available resource elements of the set PDSCH are S0 and S1.

For ePDCCH detection cluster 0, the available resource element is S0,

For ePDCCH detection cluster 1, the available resource element is S1.

For example, when a value of 1 bit is 0, it binds to S0. When the value of 1 is 1, it binds to S1.

Sub-Example 3 of Example 5

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH.

In the case of the distributed ePDCCH, the available resource element is S0,

For a centralized ePDCCH, the available resource element is S1.

Sub-Example 4 of Example 5

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, and the available resource elements Are S0 and S1.

In the case of the distributed ePDCCH, the available resource element is S0,

For a centralized ePDCCH, the available resource element is S1.

For example, when a value of 1 bit is 0, it binds to S0. When the value of 1 is 1, it binds to S1.

Example 6

The base station sets K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and the base station sets the ePDCCH start symbol ID Respectively. The UE performs reception and detection on the ePDCCH through reception for the ePDCCH start symbol ID set independently from the K ePDCCH detection clusters set by the base station.

The ePDCCH start symbol ID at the time of detection using each ePDCCH detection cluster includes a value obtained through detection for ePDCCH start symbol ID set 0, 1, 2, 3, 4 or PCFICH (Physical Control Format Indication Channel) At least one is included.

Sub-Example 1 of Example 6

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively.

For ePDCCH detection cluster 0, the ePDCCH start symbol ID is 1,

For ePDCCH detection cluster 1, the ePDCCH start symbol ID is 2.

Sub-Example 2 of Example 6

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2, ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively, and the ePDCCH start position symbol IDs of the set PDSCH are 1 and 2, respectively.

For the ePDCCH detection cluster 0, the ePDCCH start position symbol ID and the PDSCH start symbol ID are 1,

For ePDCCH detection cluster 1, the ePDCCH start position symbol ID and the PDSCH start symbol ID are 2.

For example, if the value of 1 bit is 0, it binds to 1, and if the value of 1 is 1, it binds to 2.

Sub-Example 3 of Example 6

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH.

For the distributed ePDCCH, the ePDCCH start symbol ID is 1,

For the centralized ePDCCH, the ePDCCH start symbol ID is 2.

Sub-Example 4 of Example 6

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, and the ePDCCH start point The symbol IDs are 1 and 2.

In the case of the distributed ePDCCH, the ePDCCH start position symbol ID and the PDSCH start symbol ID are 1,

In the case of the centralized ePDCCH, the ePDCCH start position symbol ID and the PDSCH start symbol ID are two.

For example, when a value of 1 bit is 0, it binds to 1, and when the value of 1 is 1, it binds to 2.

Example 7

The base station sets up K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and the base station sets the CSI measurement process when performing detection using each ePDCCH detection cluster through UE- Respectively. The UE performs reception and detection on the ePDCCH through reception for the CSI measurement process configuration set independently of the K ePDCCH detection clusters set by the base station.

Sub-Example 1 of Example 7

For example, the number of established ePDCCH detection clusters is 2, ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively, and the CSI processes set for the UE are CSI Process 0 and CSI Process 1.

ePDCCH detection cluster 0 corresponds to CSI Process 0,

ePDCCH detection cluster 1 corresponds to CSI Process 0.

Sub-Example 2 of Example 7

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2, ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively, and the CSI processes corresponding to the set PDSCH are CSI Process 0 and CSI Process 1.

In the case of ePDCCH detection cluster 0, the correspondence relationship between ePDCCH and CSI Process is the correspondence between PDSCH and CSI Process 0,

In the case of ePDCCH detection cluster 1, the correspondence relationship between ePDCCH and CSI Process is the correspondence between PDSCH and CSI Process 1.

For example, if a value of 1 bit is 0, PDSCH and CSI Process 0 are associated with each other. If the value is 1, the PDSCH and the CSI Process 1 binds to the corresponding relationship.

Sub-Example 3 of Example 7

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, and CSI Process Are CSI Process 0 and CSI Process 1.

In the case of the distributed ePDCCH, it corresponds to CSI Process 0,

In the case of clustered ePDCCH detection cluster 1, it corresponds to CSI Process 0.

Sub-Example 4 of Example 7

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, and CSI Process is CSI Process 0 and CSI Process 1.

In the case of the distributed ePDCCH, the correspondence relationship between the ePDCCH and the CSI Process is the correspondence between PDSCH and CSI Process 0,

In the case of the clustered ePDCCH detection cluster 1, the correspondence relationship between ePDCCH and CSI Process is the correspondence between PDSCH and CSI Process 1.

For example, if a value of 1 bit is 0, PDSCH and CSI Process 0 are associated with each other. If the value is 1, the PDSCH and the CSI Process 1 binds to the corresponding relationship.

Implementation 8

The base station sets up K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and the base station sets the NZP CSI-RS The correspondence relationship of the configuration is set independently. The UE performs reception and detection on the ePDCCH through reception of the correspondence relationship of the NZP CSI-RS configuration set independently of the K ePDCCH detection clusters set by the base station.

Sub-Example 1 of Example 8

For example, the number of established ePDCCH detection clusters is 2, ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively, and the NZP CSI-RS set for the UE is NZP CSI-RS 0 and NZP CSI-RS 1.

For ePDCCH detection cluster 0, it corresponds to NZP CSI-RS 0,

For ePDCCH detection cluster 1, it corresponds to NZP CSI-RS 1.

Sub-Example 2 of Example 8

For example, the number of established ePDCCH detection clusters is 2, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 respectively, and the NZP CSI-RS corresponding to the set PDSCH is NZP CSI-RS 0 and NZP CSI-RS 1 .

In the case of ePDCCH detection cluster 0, the correspondence relationship between ePDCCH and CSI Process is a correspondence relationship between PDSCH and NZP CSI-RS 0,

In the case of ePDCCH detection cluster 1, the correspondence relation between ePDCCH and CSI process is a correspondence relationship between PDSCH and NZP CSI-RS 1.

For example, if the value of 1 bit is 0, PDSCH binds to the correspondence relationship of NZP CSI-RS 0 and PDSCH binds to PDSCH start position symbol ID by 1-bit upper layer signaling. And NZP CSI-RS 1, respectively.

Sub-Example 3 of Example 8

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, CSI-RS is NZP CSI-RS 0 and NZP CSI-RS 1.

Corresponds to NZP CSI-RS 0 in the case of the distributed ePDCCH,

In case of centralized ePDCCH, it corresponds to NZP CSI-RS 1.

Sub-Example 4 of Example 8

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are centralized ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH, and the set PDSCH and NZP CSI The correspondence relation of -RS is NZP CSI-RS 0 and NZP CSI-RS 1.

In the case of the distributed ePDCCH, the correspondence relationship between ePDCCH and CSI Process is the correspondence relationship between PDSCH and NZP CSI-RS 0,

In the case of the centralized ePDCCH, the correspondence relationship between the ePDCCH and the CSI Process is the correspondence relationship between PDSCH and NZP CSI-RS 1.

For example, if the value of 1 bit is 0, PDSCH binds to the correspondence relationship of NZP CSI-RS 0 and PDSCH binds to PDSCH start position symbol ID by 1-bit upper layer signaling. And NZP CSI-RS 1, respectively.

Example 9

The base station establishes K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and the base station sets the DCI format when performing detection using each ePDCCH detection cluster through the UE- . The UE performs reception and detection on the ePDCCH through reception of a DCI Format detection set independently set from K ePDCCH detection clusters set by the base station. And detects the set DCI Format in the set ePDCCH detection cluster.

Sub-Example 1 of Example 9

For example, the number of established ePDCCH detection clusters is 2, ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively, and the DCI format detection set for the UE is DCI Format detection set 0 and DCI Format detection set 1.

For ePDCCH detection cluster 0, DCI Format detection set 0,

For ePDCCH detection cluster 1, DCI Format detection set 1 is used.

Sub-Example 2 of Example 9

For example, the number of established ePDCCH detection clusters is 2, ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively, and the DCI format detection set for the UE is DCI Format detection set 0 and DCI Format detection set 1.

For ePDCCH detection cluster 0, DCI Format detection set 0,

For ePDCCH detection cluster 1, DCI Format detection set 1 is used.

DCI Format Detection set 0 contains DCI Format 1A, 0,

DCI Format Detection set 1 includes DCI Format 2C, 4.

Sub-Example 3 of Example 9

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are concentrated ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, and DCI The format detection set is DCI Format Detect Set 0 and DCI Format Detect Set 1.

For a distributed ePDCCH, DCI Format detection set 0,

In the case of the centralized ePDCCH, the DCI Format detection set is 1.

Sub-Example 4 of Example 9

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are concentrated ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, and DCI The format detection set is DCI Format Detect Set 0 and DCI Format Detect Set 1.

For a distributed ePDCCH, DCI Format detection set 0,

In the case of the centralized ePDCCH, the DCI Format detection set is 1.

DCI Format Detection set 0 contains DCI Format 1A, 0,

DCI Format Detection set 1 includes DCI Format 2C, 4.

Example 10

The base station sets up K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and detects the detected subframe cluster when the base station performs detection using each ePDCCH detection cluster through UE- Respectively. The UE performs reception and detection on the ePDCCH through reception for the detected subframe cluster set independently of the K ePDCCH detection clusters set by the base station. And detects the detected detection subframe cluster in the set ePDCCH detection cluster. The subframe cluster instructs the terminal to detect an ePDCCH in a certain subframe and to detect a PDCCH in a certain subframe or to instruct the terminal to use a different ePDCCH detection cluster configuration in different subframe clusters .

Sub-Example 1 of Example 10

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2, which is ePDCCH detection cluster 0 and ePDCCH detection cluster 1 respectively, and detection subframe clusters set for the terminal are detected subframe cluster 0 and detection subframe cluster 1.

For ePDCCH detection cluster 0, the detection subframe cluster is 0,

For ePDCCH detection cluster 1, the detection subframe cluster 1 is.

Sub-Example 2 of Example 10

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are concentrated ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, and the detection The subframe cluster is the detection subframe cluster 0 and the detection subframe cluster 1.

In the case of the dispersion type ePDCCH, the detection subframe cluster is 0,

For the clustered ePDCCH detection cluster 1, the detection subframe cluster 1 is.

Sub-Example 3 of Example 10

For example, by setting up four subframe clusters,

The subframe cluster 0 is for supporting the terminal side performing the PDCCH detection in the corresponding subframe cluster,

The subframe cluster 1 is for instructing the UE side to perform ePDCCH detection using the ePDCCH detection cluster 0 and the ePDCCH detection cluster 1 in the corresponding subframe cluster,

The subframe cluster 2 is for instructing the UE side to perform ePDCCH detection using the ePDCCH detection cluster 1 and the ePDCCH detection cluster 2 in the corresponding subframe cluster,

The subframe cluster 3 is for instructing the UE side to perform ePDCCH detection using the ePDCCH detection cluster 3 in the corresponding subframe cluster.

In this case, the detection cluster-related parameters can be set independently for the ePDCCH detection clusters 0, 1, 2, and 3, so that at least the combination level to be detected in the detection cluster and the resource position to be detected in the detection cluster .

Example 11

The base station sets up K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and the base station performs HARQ feedback at the time of detection using each ePDCCH detection cluster through the UE- And sets the dynamic position shift indication value position of the PUCCH independently. The UE may receive the dynamic position shift indication of the PUCCH at the corresponding HARQ feedback set in the ePDCCH detection cluster set through reception of the dynamic position shift indication value of the PUCCH at the corresponding HARQ feedback set independently of the K ePDCCH detection clusters set by the base station And performs HARQ feedback according to the value. The dynamic position shift indication value of the PUCCH at the time of the HARQ feedback is for indicating the dynamic position shift indication value of the uplink PUCCH resource used at the time of the feedback of the ACK / NACK information corresponding to the ePDCCH.

Sub-Example 1 of Example 11

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively, and the start positions of PUCCHs for HARQ feedback set for the UE are α ₀ and α ₁ .

In the case of the ePDCCH detection cluster 0, the start position of the PUCCH at the time of HARQ feedback is? ₀ ,

In the case of the ePDCCH detection cluster 1, the start position of the PUCCH at the time of HARQ feedback is? ₁ .

For example, in the case of an FDD system, the equation is as follows.

In case of transmitting PUCCH to one antenna port,

(n=0 또는 1)이고

(n = 0 or 1) and

In case of transmitting PUCCH with two antenna ports,

(n=0 또는 1)이며,

(n = 0 or 1)

은 실제로 HARQ를 전송하는 자원 위치이고,

는 HARQ 피드백 시의 PUCCH의 시작 위치이며, α 는 동적 위치 편이 지시 값이고, n_CCE 는 전송에 대응되는 DCI Format의 최소 eCCE 인덱스이다.here,

Is a resource location for actually transmitting HARQ,

Is the start position of the PUCCH at the time of HARQ feedback,? Is the dynamic position shift indication value, and n _CCE is the minimum eCCE index of the DCI Format corresponding to the transmission.

Sub-Example 2 of Example 11

For example, the number of established ePDCCH detection clusters, that is, the value of K is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, The starting position of the PUCCH at the time is? ₀ and? ₁ .

In the case of the distributed ePDCCH, the start position of the PUCCH at the time of HARQ feedback is? ₀ ,

In the case of the centralized ePDCCH, the start position of the PUCCH at the time of HARQ feedback is? ₁ .

For example, in the case of an FDD system, the equation is as follows.

In case of transmitting PUCCH to one antenna port,

(n=0 또는 1)이고

(n = 0 or 1) and

In case of transmitting PUCCH with two antenna ports,

(n=0 또는 1)이며,

(n = 0 or 1)

은 실제로 HARQ를 전송하는 자원 위치이고,

는 HARQ 피드백 시의 PUCCH의 시작 위치이며, α 는 동적 위치 편이 지시 값이고, n_CCE 는 전송에 대응되는 DCI Format의 최소 eCCE 인덱스이다.here,

Is a resource location for actually transmitting HARQ,

Is the start position of the PUCCH at the time of HARQ feedback,? Is the dynamic position shift indication value, and n _CCE is the minimum eCCE index of the DCI Format corresponding to the transmission.

Example 12

The base station establishes K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and the base station uses each ePDCCH detection cluster or each ePDCCH transmission mode cluster through the UE- The corresponding DMRS scrambling sequence is not set independently. The terminal receives K ePDCCH detection clusters set by the base station.

Sub-Example 1 of Example 12

For example, the number of established ePDCCH detection clusters is 4, ePDCCH detection cluster 0 and ePDCCH detection cluster 1 are centralized ePDCCH, ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are distributed ePDCCH, and the default of dispersion ePDCCH is PDSCH DMRS scrambling sequence X0, Nscid = 0, and the default of the centralized ePDCCH corresponds to the PDSCH DMRS scrambling sequence X1, Nscid = 0.

이며,

Lt;

를 표시하고, Nscid는 이 수학식 내의

을 표시한다.Here, Xn (n = 1, 2)

And Nscid represents the value of

.

Sub-Example 2 of Example 12

For example, if the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1 respectively, and the default of ePDCCH detection cluster 0 corresponds to PDSCH DMRS scrambling sequence X0, Nscid = 0 , and the default of ePDCCH detection cluster 1 corresponds to the PDSCH DMRS scrambling sequence X1, Nscid = 0.

이며,

Lt;

를 표시하고, Nscid는 이 수학식 내의

을 표시한다.Here, Xn (n = 1, 2)

And Nscid represents the value of

.

Example 13

The base station sets up K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE and also uses each ePDCCH detection cluster or each ePDCCH transmission mode cluster through the UE-specific upper layer signaling, Set the coupling level independently. The UE performs detection on the ePDCCH through reception for a level of association set independently of the K ePDCCH detection clusters set by the base station.

Sub-Example 1 of Example 13

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are concentrated ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH.

In the case of the distributed ePDCCH, the combining level is X0,

In the case of a centralized ePDCCH, the coupling level is X1.

Sub-Example 2 of Example 13

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively.

For ePDCCH detection cluster 0, the combining level X0,

For ePDCCH detection cluster 1, the coupling level is X1.

Example 14

The base station establishes K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and the base station uses each ePDCCH detection cluster or each ePDCCH transmission mode cluster through the UE- And sets the corresponding search space position or search space start position independently. The terminal receives one or a plurality of search space positions or search space start positions set independently of the K ePDCCH detection clusters set by the base station.

Sub-Example 1 of Example 14

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are concentrated ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH.

In the case of the distributed ePDCCH, the search space position or the search space start position X0,

In the case of the centralized ePDCCH, it is the search space position or the search space start position X1.

Sub-Example 2 of Example 14

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively.

For ePDCCH detection cluster 0, the search space position or search space start position X0,

In the case of ePDCCH detection cluster 1, it is a search space position or search space start position X1.

Example 15

The base station establishes K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE and, if the value of K is one specific value, transmits each ePDCCH detection cluster or each ePDCCH transmission mode Clusters are used to independently set the DCI Format detection set corresponding to the detection. The terminal receives one or a plurality of search space positions or search space start positions set independently of the K ePDCCH detection clusters set by the base station.

Sub-Example 1 of Example 15

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are concentrated ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH.

For a distributed ePDCCH, the DCI Format detection set X0,

In the case of a centralized ePDCCH, the DCI Format detection set X1.

Sub-Example 2 of Example 15

For example, the number of established ePDCCH detection clusters, that is, the value of K, is 2 and ePDCCH detection cluster 0 and ePDCCH detection cluster 1, respectively.

For ePDCCH detection cluster 0, the DCI Format detection set X0,

For ePDCCH detection cluster 1, it is the DCI Format detection set X1.

Example 16

The base station sets up K (K? 1) ePDCCH detection clusters for the UE through the upper layer signaling of the UE, and if the value of K is a special value and there is a constant proportional relationship between the cluster quantity of the distributed formula and the centralized ePDCCH , The base station independently sets the DCI Format detection set corresponding to each ePDCCH detection cluster or each ePDCCH transmission mode cluster through detection of the upper layer signaling dedicated to the UE. The terminal receives one or a plurality of search space positions or search space start positions set independently of the K ePDCCH detection clusters set by the base station.

Sub-Example 1 of Example 16

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are concentrated ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH. That is, the proportional relationship between the number of distributed ePDCCHs and the number of clustered ePDCCHs is 2: 2.

For a distributed ePDCCH, the DCI Format detection set X0,

In the case of a centralized ePDCCH, the DCI Format detection set X1.

Sub-Example 2 of Example 16

EPDCCH detection cluster 1 and ePDCCH detection cluster 1 are concentrated ePDCCH, and ePDCCH detection cluster 2 and ePDCCH detection cluster 3 are decentralized ePDCCH. That is, the proportional relationship between the number of distributed ePDCCHs and the number of clustered ePDCCHs is 2: 2.

For ePDCCH detection cluster 0, the DCI Format detection set X0,

For the ePDCCH detection cluster 1, the DCI Format detection set X0,

For the ePDCCH detection cluster 2, the DCI Format detection set X1,

For ePDCCH detection cluster 3, it is the DCI Format detection set X1.

Example 17

The base station determines whether or not the other one of the DMRS ports sharing the time frequency resource should be supposed to be used for transmission of the ePDCCH or PDSCH of another user through the higher layer signaling and / .

The UE can receive ePDCCH resources by receiving one or more ePDCCH resources from another ePDCCH or PDSCH (ePDCCH) or another PDSCH Whether or not it should be assumed whether or not it should be used for transmission of the data.

In the DMRS antenna port, 107, 108, 109, and 110 are included in the DMRS antenna port, ports 107 and 108 share a time frequency resource, and ports 109 and 110 share a time frequency resource.

Sub-Example 1 of Example 17

The base station sets K ePDCCH detection clusters so as to detect whether or not the other one DMRS antenna port sharing the time frequency resource in the K ePDCCH detection clusters is used for ePDCCH or PDSCH transmission of the other terminal in detection of the ePDCCH resource by setting K ePDCCH detection clusters Lt; / RTI >

The UE obtains K sets of ePDCCH detection clusters through reception of UE-specific upper layer signaling, and when detecting the ePDCCH resource, the UE acquires another DMRS antenna that shares time-frequency resources in K ePDCCH detection clusters And determines whether the port is used for ePDCCH or PDSCH transport channel estimation of the other terminal, and performs channel estimation for the DMRS according to the received upper layer signaling.

Sub-Example 2 of Example 17

The base station sets up the K ePDCCH detection clusters so that when detecting the ePDCCH resource, the terminal transmits the ePDCCH or PDSCH of the other terminal to the other one of the DMRS antenna ports sharing the time frequency resource in some or all of the clusters Is set to be assumed to be used.

The mobile station acquires K sets of ePDCCH detection clusters through reception for the UE-specific upper layer signaling, and acquires another set of DMRSs for the UE to detect the ePDCCH resource and share the time-frequency resources in some or all of the K clusters. It is determined that the antenna port is set to be assumed to be used for the ePDCCH or PDSCH transmission of the other terminal.

Sub-Example 3 of Example 17

The base station also sets X subframe clusters so that when detecting for the ePDCCH resource, the base station sets the other DMRS antenna port sharing a time frequency resource in some or all of the clusters of the X subframe clusters to the ePDCCH Or whether it is used for PDSCH transmission.

The terminal acquires X (X> 0) set subframe clusters through reception of the dedicated terminal upper layer signaling, and when the terminal detects ePDCCH resources, the terminal acquires a part of X (X> 0) Or whether the other one of the DMRS antenna ports sharing the time frequency resource in the entire cluster is used for ePDCCH or PDSCH transmission of the other terminal.

Example 18

It is assumed that at the time of detection of an ePDCCH resource, the UE does not always use another DMRS antenna port sharing a time frequency resource for transmission of ePDCCH or PDSCH of another UE.

The DMRS antenna port is configured to demodulate the ePDCCH and includes 107, 108, 109, and 110, ports 107 and 108 share a time frequency resource, and ports 109 and 110 share a time frequency resource.

Example 19

In detecting the ePDCCH resource according to the ePDCCH transmission mode, the UE determines whether another DMRS antenna port sharing a time frequency resource should be used for ePDCCH or PDSCH transmission of another UE.

When the UE is set to a centralized ePDCCH, the UE is configured to always assume that another DMRS antenna port sharing a time frequency resource is not used for ePDCCH or PDSCH transmissions of another UE when detecting an ePDCCH resource.

When the UE is set to a distributed ePDCCH, the UE can not determine whether another DMRS antenna port sharing a time-frequency resource is used for ePDCCH or PDSCH transmission of another UE at the time of detection of an ePDCCH resource .

The DMRS antenna port is configured to demodulate the ePDCCH and includes 107, 108, 109, and 110, ports 107 and 108 share a time frequency resource, and ports 109 and 110 share a time frequency resource.

The base station side can flexibly set the ePDCCH detection parameter for the UE through the improved downlink control channel setting and detection method provided by the present invention so that the ePDCCH can flexibly perform dynamic switching among a plurality of TPs , And allows the base station to set the scheduling information of the ePDCCH more flexibly so that the ePDCCH has higher stability.

FIG. 1 is a diagram illustrating a configuration of an improved downlink control channel setting apparatus according to an exemplary embodiment of the present invention. As shown in FIG. 1, the improved downlink control channel setting apparatus includes a first setting unit 10, 2 setting unit 11,

The first setting unit 10 is configured to set up K ePDCCH detection clusters for the terminal,

The second setting unit (11)

Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set the antenna port index of the DMRS when proceeding detection, and /

Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set a DMRS scrambling sequence or a scrambling sequence index when proceeding with detection, and /

Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set the correspondence between the DMRS scrambling sequence and the DMRS scrambling sequence of the PDSCH when proceeding with detection and / ,

And to independently set CRS rate matching resources when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

And to independently set available resource elements for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes, and /

Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set a start symbol position for ePDCCH detection when proceeding with detection, and /

And to independently configure the CSI measurement process configuration when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set the NZP CSI-RS configuration when proceeding with detection, and /

(DCI Format) or DCI Format set to be detected when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes , And /

Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to set the ePDCCH detection subframe cluster independently when proceeding with detection, and /

Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set an association level and / or a search space start position and / or a search space position when proceeding detection, And /

Or to set independently or independently a default value or a default behavior when the signaling for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is not notified or not obtained And / or,

the ePDCCH detection cluster configuration is configured to set two or more subframe detection clusters for ePDCCH and use different ePDCCH detection cluster configurations for different subframe detection clusters and / or use ePDCCH detection or PDCCH detection, A number of clusters, a combination level to be detected in the detection cluster, and a resource position to be detected in the detection cluster.

The DMRS antenna port when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is at least one of 107, 108, 109, and 110,

The correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when the detection is performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode corresponds to a case where a scrambling sequence identifier for the PDSCH DMRS is set Sets the correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when the detection is performed using the K ePDCCH detection clusters,

The CRS rate matching resource when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the number of ports of CRS, the frequency domain location of CRS, and the number of cell identifiers of CRS At least one is included,

Resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode include CRS rate matching resources, rate matching resources of ZP CSI-RS, an ePDCCH start symbol, a special subframe configuration, and a cyclic prefix (CP) length configuration,

The ePDCCH start symbol ID set at the time of detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes ePDCCH start symbol ID sets 0, 1, 2, 3, 4 or PCFICH At least one of one or more of the values of the ePDCCH start symbol ID obtained through detection for the ePDCCH start symbol ID,

Independently configuring the CSI measurement process configuration when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used to perform detection, when a CSI process is set for the UE, Wherein the large capacity information required for detection performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using related information of the set CSI measurement process, At least one of the delay spread corresponding to the process, each path delay corresponding to the CSI measurement process, the Doppler frequency shift corresponding to the CSI measurement process, the Doppler extension corresponding to the CSI measurement process, and the average received power corresponding to the CSI measurement process And the CSI measurement process Includes one of the measurement resources of the CSI measurement process, the CSI measurement process and the measurement resource of the CSI measurement subframe cluster configuration, and the NZP CSI-RS measurement resource,

Independently setting the NZP CSI-RS configuration when performing detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes: when a measurement set is set for the UE , The large capacity information required for the detection performed using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using the related information of one NZP CSI-RS in the corresponding measurement set ,

Independently setting the DCI Format or DCI Format set to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used for detection, For each ePDCCH detection cluster or ePDCCH detection cluster in each transmission mode, a DCI Format or a DCI Format set to be detected by the UE in each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster ,

Independently configuring an ePDCCH detection subframe cluster when performing detection using each ePDCCH detection cluster or each ePDCCH detection cluster of each of the K ePDCCH detection clusters, Clms Page number 17 > For each ePDCCH detection cluster in the cluster or each transmission mode, setting the ePDCCH detection subframe cluster independently includes detecting the ePDCCH in which subframe and determining which subframe PDCCH, or instructs the terminal to use a different ePDCCH detection cluster configuration in different subframe clusters, or to instruct each ePDCCH detection cluster or ePDCCH detection cluster of each transmission mode of the K ePDCCH detection clusters For each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode, the ePDCCH detection subframe cluster is set to be independent Wherein the ePDCCH detection subframe cluster instructs the terminal to detect an ePDCCH dedicated search space in a certain subframe and detect a PDCCH dedicated search space in another subframe,

Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used for dynamic resource location indication signaling of the PUCCH at the time of performing HARQ feedback when proceeding with detection, Independently for each ePDCCH detection cluster in a detection cluster or each transmission mode, dynamic resource location indication signaling of the PUCCH at the time of performing HARQ feedback, wherein the dynamic resource location indication signaling comprises: To use PUCCH dynamic resource location indication signaling that is set independently for downlink data HARQ feedback.

On the basis of the improved downlink control channel setting apparatus shown in Fig. 1, the improved downlink control channel setting apparatus of the present invention also includes,

If one or more DMRS antenna ports are set to two or more when performing detection using one ePDCCH detection cluster of one ePDCCH detection cluster or one ePDCCH detection cluster of one transmission mode, eCCE and / or C-RNTI (Not shown in FIG. 1) configured to determine one of the two or more DMRS antenna ports as a detection port, according to a predetermined rule and / or a predefined rule.

Those skilled in the art will recognize that the determination unit is configured to optimize the enhanced downlink control channel setting apparatus of the present invention, It is not a means to understand.

The ePDCCH detection cluster of the transmission mode includes an intensive transmission mode ePDCCH detection cluster and a distributed transmission mode ePDCCH detection cluster.

The second setting unit 11 is also configured to,

Sets a different DCI Format set for the specified K value,

Sets a different DCI Format set for the specified K ePDCCH detection clusters and the ePDCCH detection clusters for the specified distributed transmission mode and the centralized transmission mode,

And to set the detected DCI Format set using each ePDCCH detection cluster.

Those skilled in the art will appreciate that the realization function of each processing unit of the enhanced downlink control channel setting apparatus shown in FIG. 1 can be understood with reference to the related description of the above-described improved downlink control channel setting and detection method It is necessary to understand that there is. Those skilled in the art will recognize that the functions of each processing unit of the enhanced downlink control channel setting apparatus shown in FIG. 1 may be realized through a program running on the process and may be realized through a specific logic circuit You must understand.

The present invention also describes a base station comprising the enhanced downlink control channel setting apparatus shown in Fig. 1 described above.

2, an improved downlink control channel detection apparatus according to the present embodiment includes a detection unit 20 and an acquisition unit 20, (21)

The detection unit 20 is configured to detect an enhanced downlink control channel,

Acquisition unit (21)

Each of the ePDCCH detection clusters of the k ePDCCH detection clusters or the ePDCCH detection clusters of the different transmission modes is used to obtain the antenna port index of the DMRS when proceeding with detection, and /

And to obtain a DMRS scrambling sequence index when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

To obtain a correspondence between a DMRS scrambling sequence and a DMRS scrambling sequence of the PDSCH when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

And to obtain CRS rate matching resources when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes is used to obtain available resource elements for ePDCCH transmission when proceeding with detection, and /

Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes is used to obtain an ePDCCH start symbol ID set when proceeding with detection, and /

And to obtain a CSI measurement process configuration when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

And to obtain an NZP CSI-RS configuration when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /

Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to obtain a DCI Format or DCI Format set to be detected when proceeding with detection, and /

Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to obtain an ePDCCH detection subframe cluster when proceeding with detection, and /

Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes is used to obtain a combining level and / or a search space starting position when proceeding with detection, and /

Wherein the terminal is configured to obtain a default value or a default behavior of each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes, where the terminal is predefined or set, and / or ,

ePDCCH detection < / RTI > detection or PDCCH detection for different subframe dominated clusters in obtaining two or more subframe dominated clusters set for ePDCCH, and / or using ePDCCH detection or PDCCH detection, The cluster configuration includes at least one of a number of detection clusters, a combination level to be detected in the detection cluster, and a resource position to be detected in the detection cluster.

The DMRS antenna port when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is at least one of 107, 108, 109, and 110,

The correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when the detection is performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode corresponds to a case where a scrambling sequence identifier for the PDSCH DMRS is set Independently sets a correspondence relationship between a DMRS scrambling sequence and a PDSCH DMRS sequence when detection is performed using each ePDCCH detection cluster of the K ePDCCH detection clusters,

The CRS rate matching resource when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the number of ports of CRS, the frequency domain location of CRS, and the number of cell identifiers of CRS At least one is included,

Resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode include CRS rate matching resources, rate matching resources of ZP CSI-RS, an ePDCCH start symbol, a special subframe configuration, and a cyclic prefix (CP) length configuration,

The ePDCCH start symbol ID set at the time of detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes ePDCCH start symbol ID sets 0, 1, 2, 3, 4 or PCFICH At least one of one or more of the values of the ePDCCH start symbol ID obtained through detection for the ePDCCH start symbol ID,

Independently setting the CSI measurement process configuration when performing detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is performed when a CSI measurement process is set for the terminal, Wherein the large capacity information required for detection performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using related information of a set CSI measurement process, The delay spread corresponding to the CSI measurement process, each path delay corresponding to the CSI measurement process, the Doppler frequency shift corresponding to the CSI measurement process, the Doppler extension corresponding to the CSI measurement process, and the average received power corresponding to the CSI measurement process One, and the CSI The measurement process includes one of the measurement resources of the CSI measurement process, the CSI measurement process and the measurement resource of the CSI measurement subframe cluster configuration, and the NZP CSI-RS measurement resource,

Independently configuring an NZP CSI-RS configuration when performing detection using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, if the measurement set is set for the terminal, The large capacity information required for detection performed using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using the related information of one NZP CSI-RS in the corresponding measurement set,

Independently setting the DCI Format or DCI Format set to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used for detection, Independently for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of each ePDCCH detection cluster or ePDCCH detection cluster in each transmission mode, a DCI Format or DCI Format set to be detected by the UE,

Independently setting ePDCCH detection subframe clusters when performing detection using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, Cluster or an ePDCCH detection subframe cluster independently set for an ePDCCH detection cluster in each transmission mode, wherein the ePDCCH detection subframe cluster detects the ePDCCH in which subframe and detects the ePDCCH detection subframe cluster in a subframe in which the PDCCH Or instructs the terminal to use a different ePDCCH detection cluster configuration in different subframe clusters, or instructs each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of each transmission mode Independently setting the ePDCCH detection subframe cluster when the detection is performed using the ePDCCH detection cluster or the ePDCCH detection subframe is performed independently for each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode, Wherein the ePDCCH detection subframe cluster includes instructing the terminal to detect an ePDCCH dedicated search space in a certain subframe and detect a PDCCH dedicated search space in another subframe,

Independently setting the dynamic resource location indication signaling of the PUCCH at the time of performing the HARQ feedback when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode, independently for each ePDCCH detection cluster of the ePDCCH detection cluster or each transmission mode ePDCCH detection cluster, dynamic resource location indication signaling of the PUCCH at the time of performing HARQ feedback, wherein the dynamic resource location indication signaling comprises: To use PUCCH dynamic resource location indication signaling set independently for downlink data HARQ feedback indicated in different ePDCCHs.

On the basis of the improved downlink control channel detection apparatus shown in FIG. 2, the improved downlink control channel detection apparatus of the present invention also includes,

When one of the K ePDCCH detection clusters obtained by the acquisition unit or the ePDCCH detection cluster of one transmission mode is used to perform detection and two or more DMRS antenna ports are used, (Not shown in Fig. 2) configured to establish one DMRS port of two or more DMRS antenna ports as a detection port in accordance with a C-RNTI and / or a predefined rule .

Those skilled in the art will recognize that the determination unit is configured to optimize the improved downlink control channel detection apparatus of the present invention and that the necessary techniques for realizing the basic purpose of the improved downlink control channel detection apparatus of the present invention It is not a means.

The ePDCCH detection cluster of the transmission mode includes an intensive transmission mode ePDCCH detection cluster and a distributed transmission mode ePDCCH detection cluster.

The detection unit (20)

Using a different DCI Format set for a specified K value,

Detecting the identified K ePDCCH detection clusters using a different DCI Format set for the ePDCCH detection clusters in the specified distributed transmission mode and the intensive transmission mode,

And to perform detection on the DCI Format set using each acquired ePDCCH detection cluster.

Those skilled in the art will appreciate that the realization function of each processing unit of the enhanced downlink control channel detection apparatus shown in FIG. 2 can be understood with reference to the related description of the above-described improved downlink control channel setup and detection method You must understand that there is. Those skilled in the art will recognize that the functions of each processing unit of the enhanced downlink control channel setting apparatus shown in FIG. 2 may be realized through a program running on the process and may be realized through a specific logic circuit You must understand.

The present invention also describes a terminal comprising the above-described improved downlink control channel detection apparatus shown in FIG.

As will be appreciated, those skilled in the art will recognize that each processing unit or step of the invention can be realized through a general purpose computing device and can be integrated into a single computing device or distributed over a network comprising a plurality of computing devices And may alternatively be implemented as program code executable by a computing device and stored in a storage device for execution by a computing device, or they may be implemented as respective integrated circuit modules, or a plurality of these modules or steps Can be realized by a single integrated circuit module. Therefore, the present invention is not limited to the combination of specified hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

The technique of the present invention allows the base station to flexibly set the ePDCCH detection parameter so as to flexibly perform dynamic switching between the plurality of TPs for the ePDCCH and to allow the base station to set the scheduling information of the ePDCCH more flexibly So that the ePDCCH has higher stability.

Claims (48)

An improved downlink control channel setting method,
K ePDCCH detection clusters are set for the UE,
Independently setting an antenna port index of the demodulation reference signal (DMRS) when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used for detection; And / or
Independently setting a DMRS scrambling sequence or a scrambling sequence index when performing detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters; And / or
The correspondence relationship between the DMRS scrambling sequence and the DMRS scrambling sequence of the physical downlink shared channel (PDSCH) when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is independently set ; And / or
Independently setting a common reference signal (CRS) rate matching resource when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters; And / or
Independently configuring resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes; And / or
Independently setting a start symbol position for ePDCCH detection when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes; And / or
Independently configuring a CSI measurement process configuration when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to perform detection; And / or
Independently configuring an NZP (nonzero power) CSI-RS configuration when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or
Independently setting a downlink control information format (DCI Format) or a DCI Format set to be detected when detection is performed using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes; And / or
Independently configuring an ePDCCH detection subframe cluster when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or
Setting an aggregation level and / or a search space start position and / or a search space position when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes independently ; And / or
Independently predefining or independently setting a default value or a default behavior when the signaling for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is not notified or not obtained ; And / or
For the ePDCCH, two or more subframe detection clusters are set up and different ePDCCH detection cluster configurations are used for different subframe detection clusters and / or ePDCCH detection or PDCCH detection is used, A step of including at least one of a quantity, a combination level to be detected in the detection cluster, and a resource position to be detected in the detection cluster is included
Wherein the downlink control channel setting method comprises: The method according to claim 1,
The DMRS antenna port when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is at least one of 107, 108, 109, and 110
Wherein the downlink control channel setting method comprises: The method of claim 2,
When one or more DMRS antenna ports are set to two or more when performing detection using one ePDCCH detection cluster of the K ePDCCH detection clusters or one transmission mode ePDCCH detection cluster, ) And / or a cell radio network temporary identifier (C-RNTI) and / or a predefined rule, one of two or more DMRS antenna ports is established as a detection port
Wherein the downlink control channel setting method comprises: The method according to claim 1,
The correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when the detection is performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode corresponds to a case where a scrambling sequence identifier for the PDSCH DMRS is set , The corresponding relationship between the DMRS scrambling sequence and the PDSCH DMRS sequence when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters is set independently
Wherein the downlink control channel setting method comprises: The method according to claim 1,
The CRS rate matching resource when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the number of ports of CRS, the frequency domain location of CRS, and the number of cell identifiers of CRS At least one
Wherein the downlink control channel setting method comprises: The method according to claim 1,
Resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode include a CRS rate matching resource, a ZP (zero power) CSI-RS At least one of a rate matching resource, an ePDCCH start symbol, a special subframe configuration, and a cyclic prefix (CP) length configuration is included
Wherein the downlink control channel setting method comprises: The method according to claim 1,
The ePDCCH start symbol ID set at the time of detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes ePDCCH start symbol ID sets 0, 1, 2, 3, 4 or PCFICH (Physical control format indicating channel) of the ePDCCH start symbol ID, which is obtained through detection of the ePDCCH start symbol ID
Wherein the downlink control channel setting method comprises: The method according to claim 1,
Independently establishing a CSI measurement process configuration when performing detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode of the ePDCCH detection clusters,
When the CSI process is set for the UE, large-scale information required for detection performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is set as a set CSI measurement Use of relevant information of the process,
The large-
A delay spread corresponding to the CSI measurement process, a path delay corresponding to the CSI measurement process, a Doppler frequency shift corresponding to the CSI measurement process, a Doppler broadening corresponding to the CSI measurement process, And an average received power corresponding to the CSI measurement process,
In the CSI measurement process,
A measurement resource of a CSI measurement process, a measurement resource of a CSI measurement process and a CSI measurement subframe cluster configuration, and an NZP CSI-RS measurement resource
Wherein the downlink control channel setting method comprises: The method according to claim 1,
Independently configuring the NZP CSI-RS configuration when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode,
When a measurement set is set for the UE, the large capacity information required for detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is set to one NZP Using the related information of the CSI-RS,
The large-
Delay spread corresponding to NZP CSI-RS, each path delay corresponding to NZP CSI-RS, Doppler frequency shift corresponding to NZP CSI-RS, Doppler extension corresponding to NZP CSI-RS, If one of the average received powers is included
Wherein the downlink control channel setting method comprises: The method according to claim 1,
Independently setting a DCI Format or a DCI Format set to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used for detection,
For each ePDCCH detection cluster or ePDCCH detection cluster of each transmission mode of the K ePDCCH detection clusters, a DCI Format or a DCI Format set to be detected by the UE in each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster is independently Including setting
Wherein the downlink control channel setting method comprises: The method according to claim 1,
Independently establishing an ePDCCH detection subframe cluster when performing detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or an ePDCCH detection cluster of each transmission mode,
Wherein the ePDCCH detection subframe cluster independently sets ePDCCH detection clusters of the K ePDCCH detection clusters or ePDCCH detection clusters of each transmission mode independently of the K ePDCCH detection clusters, Indicating to detect a PDCCH in which subframe, or instructing the terminal to use a different ePDCCH detection cluster configuration in different subframe clusters
Wherein the downlink control channel setting method comprises: The method according to claim 1,
Independently establishing an ePDCCH detection subframe cluster when performing detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or an ePDCCH detection cluster of each transmission mode,
Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection subframe cluster of each transmission mode independently sets the ePDCCH detection subframe cluster, To detect a space and to detect a PDCCH dedicated search space in some other subframes
Wherein the downlink control channel setting method comprises: The method according to claim 1,
Independently setting dynamic resource location indication signaling of the PUCCH at the time of performing HARQ (Hybrid Automatic Repeat Request) feedback for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, The dynamic resource location indication signaling instructs the terminal to use PUCCH dynamic resource location indication signaling set independently for downlink data HARQ feedback indicated in different ePDCCHs
Wherein the downlink control channel setting method comprises: The method according to any one of claims 1 to 13,
Wherein the ePDCCH detection cluster in the transmission mode includes an intensive transmission mode ePDCCH detection cluster and a distributed transmission mode ePDCCH detection cluster
Wherein the downlink control channel setting method comprises: 15. The method of claim 14,
In independently setting up a downlink control information format (DCI Format) to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used for detection,
Sets a different DCI Format set for the specified K value,
Sets a different DCI Format set for the specified K ePDCCH detection clusters and the ePDCCH detection clusters for the specified distributed transmission mode and the centralized transmission mode,
And setting a detected DCI Format set using each ePDCCH detection cluster
Wherein the downlink control channel setting method comprises: In an improved downlink control channel detection method,
Detecting an enhanced downlink control channel by the terminal;
Obtaining an antenna port index of a demodulation reference signal (DMRS) when each ePDCCH detection cluster of k ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode is used for detection; And / or
Obtaining a DMRS scrambling sequence index when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes; And / or
Obtaining a correspondence between a DMRS scrambling sequence and a DMRS scrambling sequence of the PDSCH when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes; And / or
Obtaining a common reference signal (CRS) rate matching resource when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or
Obtaining resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes; And / or
Obtaining an ePDCCH start symbol ID set when each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode is used for detection; And / or
Obtaining a CSI measurement process configuration when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or
Obtaining an NZP CSI-RS configuration when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or
Obtaining a downlink control information format (DCI Format) or a DCI Format set to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used for detection; And / or
Obtaining an ePDCCH detection subframe cluster when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of a different transmission mode; And / or
Obtaining an association level and / or a search space start position when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes are used for detection; And / or
Wherein the UE acquires independently a predefined value or a default action used by each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes, ; And / or
ePDCCH detection cluster configuration using different ePDCCH detection cluster configurations for different subframe dominated clusters in acquiring two or more subframe dominated clusters set for ePDCCH, or using ePDCCH detection or PDCCH detection but using ePDCCH detection cluster configuration Includes a step of including at least one of a number of detection clusters, a combination level to be detected in the detection cluster, and a resource position to be detected in the detection cluster
Wherein the downlink control channel is an uplink channel. 18. The method of claim 16,
The DMRS antenna port when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is at least one of 107, 108, 109, and 110,
The correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when the detection is performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode corresponds to a case where a scrambling sequence identifier for the PDSCH DMRS is set Independently sets a correspondence relationship between a DMRS scrambling sequence and a PDSCH DMRS sequence when detection is performed using each ePDCCH detection cluster of the K ePDCCH detection clusters,
The CRS rate matching resource when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the number of ports of CRS, the frequency domain location of CRS, and the number of cell identifiers of CRS At least one is included,
Resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode include CRS rate matching resources, rate matching resources of ZP CSI-RS, an ePDCCH start symbol, a special subframe configuration, and a cyclic prefix (CP) length configuration,
The ePDCCH start symbol ID set at the time of detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes ePDCCH start symbol ID sets 0, 1, 2, 3, 4 or PCFICH At least one of one or more of the values of the ePDCCH start symbol ID obtained through detection for the ePDCCH start symbol ID,
Independently setting the CSI measurement process configuration when performing detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the steps of, when a CSI measurement process is set for the terminal, Wherein the large capacity information required for detection performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using related information of a set CSI measurement process, The delay spread corresponding to the CSI measurement process, each path delay corresponding to the CSI measurement process, the Doppler frequency shift corresponding to the CSI measurement process, the Doppler extension corresponding to the CSI measurement process, and the average received power corresponding to the CSI measurement process One is included, The CSI measurement process includes one of the measurement resources of the CSI measurement process, the CSI measurement process and the measurement resource of the CSI measurement subframe cluster configuration, and the NZP CSI-RS measurement resource,
Independently configuring the NZP CSI-RS configuration when performing detection using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, , The large capacity information required for detection performed using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using the related information of one NZP CSI-RS in the corresponding measurement set ,
Independently setting a DCI Format or a DCI Format set to be detected when each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters is to be detected, For each ePDCCH detection cluster of each transmission mode or each ePDCCH detection cluster of each transmission mode, a DCI Format or DCI Format set to be detected by the UE in each ePDCCH detection cluster or each transmission mode,
Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or each of the ePDCCH detection clusters of each transmission mode independently configures an ePDCCH detection subframe cluster when performing detection using the ePDCCH detection clusters of the K ePDCCH detection clusters, Clusters or ePDCCH Detection Clusters for each transmission mode independently, and the ePDCCH detection subframe cluster detects the ePDCCH in any subframe and detects the PDCCH in any subframe Or instructing the terminal to use different ePDCCH detection cluster configurations in different subframe clusters or by using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters Independently setting an ePDCCH detection subframe cluster for each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode and independently setting an ePDCCH detection subframe cluster for each transmission mode, Wherein the ePDCCH detection subframe cluster includes instructing the terminal to detect an ePDCCH dedicated search space in a certain subframe and detect a PDCCH dedicated search space in another subframe,
Independently setting dynamic resource location indication signaling of a PUCCH at the time of performing HARQ feedback for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, , And instructs the terminal to use PUCCH dynamic resource location indication signaling set independently for downlink data HARQ feedback indicated in different ePDCCHs
Wherein the downlink control channel is an uplink channel. 18. The method of claim 17,
An enhanced control channel element (eCCE) when two or more DMRS antenna ports are used when performing detection using one ePDCCH detection cluster or one transmission mode ePDCCH detection cluster among the obtained K ePDCCH detection clusters, One of the two or more DMRS antenna ports is determined as a detection port in accordance with the cell radio network temporary identifier (C-RNTI) and / or the pre-defined rule
Wherein the downlink control channel is an uplink channel. The method according to any one of claims 16 to 18,
Wherein the ePDCCH detection cluster in the transmission mode includes an intensive transmission mode ePDCCH detection cluster and a distributed transmission mode ePDCCH detection cluster
Wherein the downlink control channel is an uplink channel. The method of claim 19,
In obtaining the downlink control information format (DCI Format) to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used for detection,
A terminal detects a K value using a different DCI Format set,
The UE detects the identified K ePDCCH detection clusters and the ePDCCH detection clusters in the specified distributed transmission mode and the centralized transmission mode using a different DCI Format set,
And performing detection on the DCI Format set using the respective ePDCCH detection clusters obtained by the UE
Wherein the downlink control channel is an uplink channel. An improved downlink control channel setting apparatus comprising:
A first setting unit and a second setting unit are included,
The first setting unit is configured to set up K ePDCCH detection clusters for the terminal,
The second setting unit,
Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set the antenna port index of the DMRS when proceeding detection, and /
Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set a DMRS scrambling sequence or a scrambling sequence index when proceeding with detection, and /
Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set the correspondence between the DMRS scrambling sequence and the DMRS scrambling sequence of the PDSCH when proceeding with detection and / ,
And to independently set CRS rate matching resources when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /
And to independently set available resource elements for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes, and /
Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set a start symbol position for ePDCCH detection when proceeding with detection, and /
And to independently configure the CSI measurement process configuration when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /
Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set the NZP CSI-RS configuration when proceeding with detection, and /
(DCI Format) or DCI Format set to be detected when proceeding with detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes , ≪ / RTI > and /
Each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to set the ePDCCH detection subframe cluster independently when proceeding with detection, and /
Wherein each of the ePDCCH detection clusters of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to independently set an association level and / or a search space start position and / or a search space position when proceeding detection, And /
Or to set independently or independently a default value or a default behavior when the signaling for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is not notified or not obtained And / or,
the ePDCCH detection cluster configuration is configured to set two or more subframe detection clusters for ePDCCH and use different ePDCCH detection cluster configurations for different subframe detection clusters and / or use ePDCCH detection or PDCCH detection, A configuration of at least one of a number of clusters, a combination level to be detected in the detection cluster, and a resource position to be detected in the detection cluster is included
Wherein the downlink control channel setting apparatus comprises: 23. The method of claim 21,
The DMRS antenna port when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is at least one of 107, 108, 109, and 110,
The correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when the detection is performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode corresponds to a case where a scrambling sequence identifier for the PDSCH DMRS is set Independently sets a correspondence relationship between a DMRS scrambling sequence and a PDSCH DMRS sequence when detection is performed using each ePDCCH detection cluster of the K ePDCCH detection clusters,
The CRS rate matching resource when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the number of ports of CRS, the frequency domain location of CRS, and the number of cell identifiers of CRS At least one is included,
Resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode include CRS rate matching resources, rate matching resources of ZP CSI-RS, an ePDCCH start symbol, a special subframe configuration, and a cyclic prefix (CP) length configuration,
The ePDCCH start symbol ID set at the time of detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes ePDCCH start symbol ID sets 0, 1, 2, 3, 4 or PCFICH At least one of one or more of the values of the ePDCCH start symbol ID obtained through detection for the ePDCCH start symbol ID,
Independently configuring the CSI measurement process configuration when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used to perform detection, when a CSI process is set for the UE, Wherein the large capacity information required for detection performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using related information of the set CSI measurement process, At least one of the delay spread corresponding to the process, each path delay corresponding to the CSI measurement process, the Doppler frequency shift corresponding to the CSI measurement process, the Doppler extension corresponding to the CSI measurement process, and the average received power corresponding to the CSI measurement process And the CSI measurement process Includes one of the measurement resources of the CSI measurement process, the CSI measurement process and the measurement resource of the CSI measurement subframe cluster configuration, and the NZP CSI-RS measurement resource,
Independently setting the NZP CSI-RS configuration when performing detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes: when a measurement set is set for the UE , The large capacity information required for detection conducted using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using the related information of one NZP CSI-RS in the corresponding measurement set And,
Independently setting the DCI Format or DCI Format set to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used for detection, Independently for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of each ePDCCH detection cluster or ePDCCH detection cluster in each transmission mode, a DCI Format or DCI Format set to be detected by the UE,
Independently configuring an ePDCCH detection subframe cluster when performing detection using each ePDCCH detection cluster or each ePDCCH detection cluster of each of the K ePDCCH detection clusters, Clusters or ePDCCH Detection Clusters for each transmission mode independently, and the ePDCCH detection subframe cluster detects the ePDCCH in any subframe and detects the PDCCH in any subframe Or instructing the terminal to use a different ePDCCH detection cluster configuration in different subframe clusters, or each ePDCCH detection cluster of the K ePDCCH detection clusters or an ePDCCH detection cluster of each transmission mode Independently setting the ePDCCH detection subframe cluster for each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode, Wherein the ePDCCH detection subframe cluster includes instructing the terminal to detect an ePDCCH dedicated search space in a certain subframe and detect a PDCCH dedicated search space in another subframe,
Independently setting dynamic resource location indication signaling of a PUCCH at the time of performing HARQ feedback for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, , And instructs the terminal to use PUCCH dynamic resource location indication signaling set independently for downlink data HARQ feedback indicated in different ePDCCHs
Wherein the downlink control channel setting apparatus comprises: 23. The method of claim 22,
When an ePDCCH detection cluster of K ePDCCH detection clusters or an ePDCCH detection cluster of one transmission mode is used and the DMRS antenna port is set to two or more when the detection is proceeded, an enhanced control channel element (eCCE) And a determination unit configured to determine one of the two or more DMRS antenna ports as a detection port in accordance with the cell radio network temporary identifier (C-RNTI) and / or the predefined rule felled
Wherein the downlink control channel setting apparatus comprises: 23. The method according to any one of claims 21 to 23,
Wherein the ePDCCH detection cluster in the transmission mode includes an intensive transmission mode ePDCCH detection cluster and a distributed transmission mode ePDCCH detection cluster
Wherein the downlink control channel setting apparatus comprises: 27. The method of claim 24,
The second setting unit may further comprise:
Sets a different DCI Format set for the specified K value,
Sets a different DCI Format set for the specified K ePDCCH detection clusters and the ePDCCH detection clusters for the specified distributed transmission mode and the centralized transmission mode,
And configured to set a detected DCI Format set using each ePDCCH detection cluster
Wherein the downlink control channel setting apparatus comprises: Comprising an improved downlink control channel setting device according to any one of claims 21 to 25
. An improved downlink control channel detection apparatus comprising:
A detection unit and an acquisition unit,
The detection unit is configured to detect an enhanced downlink control channel,
The acquisition unit
To obtain an antenna port index of a demodulation reference signal (DMRS) when proceeding with detection using each ePDCCH detection cluster of k ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes, and /
And to obtain a DMRS scrambling sequence index when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /
To obtain a correspondence between a DMRS scrambling sequence and a DMRS scrambling sequence of the PDSCH when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /
And to obtain common reference signal (CRS) rate matching resources when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /
Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes is used to obtain available resource elements for ePDCCH transmission when proceeding with detection, and /
Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes is used to obtain an ePDCCH start symbol ID set when proceeding with detection, and /
And to obtain a CSI measurement process configuration when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /
And to obtain an NZP CSI-RS configuration when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /
(DCI Format) or DCI Format set to be detected when proceeding with detection using each ePDCCH detection cluster or ePDCCH detection clusters of different transmission modes of the K ePDCCH detection clusters, and /or,
Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is used to obtain an ePDCCH detection subframe cluster when proceeding with detection, and /
Wherein each ePDCCH detection cluster of the K ePDCCH detection clusters or ePDCCH detection clusters of different transmission modes is used to obtain a combining level and / or a search space starting position when proceeding with detection, and /
And if the information is not acquired, the terminal acquires a default value or a default behavior used by each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes independently of the K ePDCCH detection clusters And / or,
ePDCCH detection < / RTI > detection or PDCCH detection for different subframe dominated clusters in obtaining two or more subframe dominated clusters set for ePDCCH, and / or using ePDCCH detection or PDCCH detection, The cluster configuration includes at least one of a number of detection clusters, a combination level to be detected in the detection cluster, and a resource position to be detected in the detection cluster
Wherein the downlink control channel detection apparatus comprises: 28. The method of claim 27,
The DMRS antenna port when performing detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of different transmission modes is at least one of 107, 108, 109, and 110,
The correspondence between the DMRS scrambling sequence and the PDSCH DMRS sequence when the detection is performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode corresponds to a case where a scrambling sequence identifier for the PDSCH DMRS is set Independently sets a correspondence relationship between a DMRS scrambling sequence and a PDSCH DMRS sequence when detection is performed using each ePDCCH detection cluster of the K ePDCCH detection clusters,
The CRS rate matching resource when detecting each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes the number of ports of CRS, the frequency domain location of CRS, and the number of cell identifiers of CRS At least one is included,
Resource elements available for ePDCCH transmission when proceeding with detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or each transmission mode include CRS rate matching resources, rate matching resources of ZP CSI-RS, an ePDCCH start symbol, a special subframe configuration, and a cyclic prefix (CP) length configuration,
The ePDCCH start symbol ID set at the time of detection using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes ePDCCH start symbol ID sets 0, 1, 2, 3, 4 or PCFICH At least one of one or more of the values of the ePDCCH start symbol ID obtained through detection for the ePDCCH start symbol ID,
Independently setting the CSI measurement process configuration when performing detection using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is performed when a CSI measurement process is set for the terminal, Wherein the large capacity information required for detection performed using each ePDCCH detection cluster of each of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using related information of a set CSI measurement process, The delay spread corresponding to the CSI measurement process, each path delay corresponding to the CSI measurement process, the Doppler frequency shift corresponding to the CSI measurement process, the Doppler extension corresponding to the CSI measurement process, and the average received power corresponding to the CSI measurement process One, and the CSI The measurement process includes one of the measurement resources of the CSI measurement process, the CSI measurement process and the measurement resource of the CSI measurement subframe cluster configuration, and the NZP CSI-RS measurement resource,
Independently setting the NZP CSI-RS configuration when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used for detecting is performed when a measurement set is set for the UE , The large capacity information required for detection performed using each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode includes using the related information of one NZP CSI-RS in the corresponding measurement set ,
Independently setting the DCI Format or DCI Format set to be detected when each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode is used for detection, Independently for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of each ePDCCH detection cluster or ePDCCH detection cluster in each transmission mode, a DCI Format or DCI Format set to be detected by the UE,
Independently configuring an ePDCCH detection subframe cluster when performing detection using each ePDCCH detection cluster or each ePDCCH detection cluster of each of the K ePDCCH detection clusters, Clusters or ePDCCH Detection Clusters for each transmission mode independently, and the ePDCCH detection subframe cluster detects the ePDCCH in any subframe and detects the PDCCH in any subframe Or instructing the terminal to use different ePDCCH detection cluster configurations in different subframe clusters or by using each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters Independently setting the ePDCCH detection subframe cluster when going out is independently described for each ePDCCH detection cluster of the K ePDCCH detection clusters or the ePDCCH detection clusters of each transmission mode, Wherein the ePDCCH detection subframe cluster includes instructing the terminal to detect an ePDCCH dedicated search space in a certain subframe and detect a PDCCH dedicated search space in another subframe,
Independently setting dynamic resource location indication signaling of a PUCCH at the time of performing HARQ feedback for each ePDCCH detection cluster or each transmission mode ePDCCH detection cluster of the K ePDCCH detection clusters, , And instructs the terminal to use PUCCH dynamic resource location indication signaling set independently for downlink data HARQ feedback indicated in different ePDCCHs
Wherein the downlink control channel detection apparatus comprises: 29. The method of claim 28,
When two or more DMRS antenna ports are used when performing detection using one ePDCCH detection cluster or one ePDCCH detection cluster of one transmission mode among the K ePDCCH detection clusters acquired by the acquisition unit, Is configured to establish one of the two or more DMRS antenna ports as a detection port in accordance with an element (eCCE) and / or a cell radio network temporary identifier (C-RNTI) and / or a predefined rule Further comprising a determination unit
Wherein the downlink control channel detection apparatus comprises: 29. The method of any one of claims 27-29,
Wherein the ePDCCH detection cluster in the transmission mode includes an intensive transmission mode ePDCCH detection cluster and a distributed transmission mode ePDCCH detection cluster
Wherein the downlink control channel detection apparatus comprises: 32. The method of claim 30,
The detection unit may further comprise:
Using a different DCI Format set for a specified K value,
Detecting the identified K ePDCCH detection clusters using a different DCI Format set for the ePDCCH detection clusters in the specified distributed transmission mode and the intensive transmission mode,
Configured to perform detection on a DCI Format set using each acquired ePDCCH detection cluster
Wherein the downlink control channel detection apparatus comprises: Comprising an improved downlink control channel detection apparatus according to any one of claims 27 to 31
. It is determined whether another one of the DMRS antenna ports sharing the time frequency resource at the time of detection for the ePDCCH resource is used for ePDCCH or PDSCH transmission of the other terminal by using terminal-specific higher layer signaling and / or downlink control information (DCI) And notifies the terminal whether or not it should be assumed
. 34. The method of claim 33,
The base station also sets K ePDCCH detection clusters so that when detecting for the ePDCCH resource, the other one of the DMRS antenna ports sharing the time frequency resource in the K ePDCCH detection clusters transmits ePDCCH or PDSCH Lt; RTI ID = 0.0 > and / or < / RTI >
. 34. The method of claim 33,
The base station sets K ePDCCH detection clusters so that when detecting ePDCCH resources, the other DMRS antenna port sharing a time frequency resource in a part or all of clusters of K clusters is detected as ePDCCH or PDSCH To be used for transmission
. 34. The method of claim 33,
The base station also sets up X subframe clusters so that, when detecting the ePDCCH resource, the base station sets another one of the DMRS antenna ports sharing a time frequency resource in a part or all of clusters of X subframe clusters, ePDCCH or < RTI ID = 0.0 > PDSCH < / RTI >
. 35. The method of any one of claims 33-36,
The DMRS antenna ports include 107, 108, 109, and 110, ports 107 and 108 share a time frequency resource, and ports 109 and 110 share a time frequency resource
. The other one of the DMRS antenna ports sharing the time frequency resource at the time of detection for the ePDCCH resource is transmitted to the ePDCCH or PDSCH transmission of the other terminal through reception of the terminal-dedicated higher layer signaling and / or downlink control information (DCI) Which is configured to determine whether or not it should be assumed
. 42. The method of claim 38,
The UE also acquires K sets of ePDCCH detection clusters through reception for UE-specific higher layer signaling, and also acquires K sets of other ePDCCH detection clusters in the K ePDCCH detection clusters To determine whether the DMRS antenna port of the DMRS antenna port is used for ePDCCH or PDSCH channel estimation of another UE, and performs channel estimation for the DMRS according to the received upper layer signaling Configured to perform
. 42. The method of claim 38,
The UE also acquires K sets of ePDCCH detection clusters through reception for UE-specific higher layer signaling, and when detecting for an ePDCCH resource, the UE communicates a time frequency resource in some or all clusters of K clusters Is set to assume that the other one of the DMRS antenna ports is used for ePDCCH or PDSCH transmission of the other terminal
. 42. The method of claim 38,
The UE also acquires X set subframe clusters through reception for UE-specific higher layer signaling, and when detecting for an ePDCCH resource, instructs the UE to transmit a time frequency resource Is set to assume that the other one of the DMRS antenna ports sharing the common terminal is used for ePDCCH or PDSCH transmission of the other terminal
. 42. The method of any one of claims 38-41,
The DMRS antenna port is configured to demodulate the ePDCCH and includes 107, 108, 109, and 110, ports 107 and 108 share a time frequency resource, and ports 109 and 110 share a time frequency resource
. it is always assumed at the time of detection for the ePDCCH resource that the other one of the DMRS antenna ports sharing the time frequency resource is not used for the ePDCCH or PDSCH transmission of the other terminal
. 46. The method of claim 43,
The DMRS antenna port is configured to demodulate the ePDCCH and includes 107, 108, 109, and 110, ports 107 and 108 share a time frequency resource, and ports 109 and 110 share a time frequency resource
. According to the ePDCCH transmission mode, at the time of detection for the ePDCCH resource, it is determined whether another one of the DMRS antenna ports sharing the time frequency resource should be used for the ePDCCH or PDSCH transmission of the other terminal
. 46. The method of claim 45,
When the UE is set to a centralized ePDCCH, the UE is configured to always assume that another DMRS antenna port sharing a time frequency resource is not used for ePDCCH or PDSCH transmission of another UE when detecting an ePDCCH resource
. 46. The method of claim 45,
When the UE is set to a distributed ePDCCH, the UE may determine whether another DMRS antenna port sharing a time frequency resource is used for ePDCCH or PDSCH transmission of another UE at the time of detection of an ePDCCH resource Not configured to be
. 47. The method of any one of claims 45-47,
The DMRS antenna port is configured to demodulate the ePDCCH and includes 107, 108, 109, and 110, ports 107 and 108 share a time frequency resource, and ports 109 and 110 share a time frequency resource
.

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